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March 27, 2015

Search: standard deviation of net present value

Number of results: 33,749

Statistic
18. Twenty students randomly assigned to an experimental group receive an instructional program; 30 in a control group do not. After 6 months, both groups are tested on their knowledge. The experimental group has a mean of 38 on the test (with an estimated population standard ...
February 20, 2010 by Doris I

math
Our statistics students, as noted in Exercise 6.32, were asked to rate their admiration of Hillary Rodham Clinton on a scale of 1 to 7. They also were asked to rate their admiration of Jennifer Lopez and Venus Williams on a scale of 1 to 7. As noted earlier, the mean rating of...
October 12, 2013 by eid2013

Elementary Statistics
Heights of women have a bell-shaped distribution with a mean of 161 cm and a standard deviation of 7 cm. Using Chebyshev’s theorem, what do we know about the percentage of women with heights that are within 2 standard deviations of the mean? What are the minimum and maximum ...
September 4, 2012 by mary

statistics
A statistics practitioner would like to estimate a population mean to within 50 units with 99% confidence given that the population standard deviation is 250. a) What sample size should be used. b) Repeat part (a) with a standard deviation of 50. c) Repeat part (a) using a 95...
March 13, 2010 by Tom

statistics help please
For a random sample of 10 men, the mean head circumference is x = 57.3 cm and the sample standard deviation is s = 2 cm. The standard error of the sample mean is: a. 0.200 b. 0.447 c. 0.500 d. 0.632
July 22, 2011 by toyman

math
Can someone explain how I missed this question. Sample has a mean of 47 and a standard deviation of 9. Find the z-score for each value of x=53.(give answer correct to 2 decimal places) I did it this way and missed it 53-47divided by 9 = 0.666 and I put 0.6 for the answer. Did ...
May 23, 2013 by Sue

alegbra
Find the present value, using the present value formula and a calculator. (Round your answer to the nearest cent.) Achieve $225,500 at 8.55% compounded continuously for 8 years, 155 days. I use e for compound continuousy A=Pe^(rt).so I did 225,500=Pe^(.0855*8.42)than I divided...
May 16, 2014 by Mary Ann

Stastics
If the population standard deviation is Ợ=8, how large a sample is necessary to have a standard error that is a. Less than 4 points? b. Less than 2 points? c. Less than 1 point?
December 13, 2013 by Lyndyc

statistics
According to Beautiful Bride magazine, the average age of a groom is now 26.2 years. A sample of 16 prospective grooms in Chicago revealed that their average age was 26.6 years with a standard deviation of 5.3 years. What is the test value for a t test of the claim?
April 25, 2011 by Anonymous

Statistics
Part 2 - The president of the company is uncomfortable with the precision of the estimates derived for the sample mean. They are not willing to tolerate a very large error. e = .04, how large would the sample size have to be if they specify a 98% confidence level? Formula: n...
March 13, 2007 by LINDA

Prob and Stats
Einstein claims that his true average quiz score is 90. You have sample data on 25 of his quizzes. The average for that samaple is 83, and the standard deviation for the sample (s) is 4. The alpha for this two-tailed test is 0.05. Provide the calculated t-vaule, the critial t-...
November 14, 2009 by Statistics help!

statistics
The diameter of an electric cable is normally distributed, with a mean of 0.6 inch and a standard deviation of 0.02 inch. What is the probability that the diameter will exceed 0.62 inch? (You may need to use the standard normal distribution table.
June 4, 2014 by leelee kay

Math
Can someone help me verify if this is correct? Gasoline usage for compact cars in Canada is a normal distribution with a mean of 33.3 km/l and with standard deviation of 7.3 km/L. Round your answers to one decimal place. a) What percentage of compact cars obtains 20km/L or ...
April 17, 2011 by Jay

Math
Can someone help me verify if this is correct? Gasoline usage for compact cars in Canada is a normal distribution with a mean of 33.3 km/l and with standard deviation of 7.3 km/L. Round your answers to one decimal place. a) What percentage of compact cars obtains 20km/L or ...
April 17, 2011 by Jay

statistics
A standardized third grade reading test, called the We Can Read Test, has a mean of 50 with a standard deviation of 10. A developmental psychologist conducts a study, where he assesses the reading ability of a random sample of 75 third graders using the We Can Read Test, and ...
April 16, 2014 by Carrie

Statistics
I am so lost on this statistics question would someone help me figure out how to answer it? A random variable X is normally distributed with the mean and standard deviation 1.6. What is the proportion of the data values that lies within 1.6 standard deviations from the ...
November 27, 2012 by Layney

statistics
Question2: When parking a car in a downtown parking lot, drivers pay according to the number of hours or fraction thereof. The probability distribution of the number of hours cars are parked is given below X 1 2 3 4 5 6 7 8 f(X) 0.30 0.24 0.17 0.10 0.08 0.05 0.04 0.02 a. ...
December 11, 2011 by s.Alhosani

statistics
Our statistics students, as noted were asked to rate their admiration of Hillary Rodham Clinton on a scale of 1 to 7. They also were asked to rate their admiration of Jennifer Lopez and Venus Williams on a scale of 1 to 7. As noted earlier, the mean rating of Clinton was 4.06...
October 14, 2013 by eid2013

algebra 2
The monthly rents for the apartments in a building are listed below. $425, $550, $550, $550, $650, $650, $650, $650, $800, $900 Part A: Find the mean, median, mode, range, and standard deviation of the rents. Part B: The apartment manager considers raising the rent for every ...
May 23, 2012 by jenny

business statistics
A mortgage broker is offering home mortgage at a rate of 9.5% but is fearful that this value is higher than many others are charging. A sample of 40 mortgages files in the country court house shows an average of 9.25% with a standard deviation of 8.61%. Does this sample ...
August 1, 2009 by Samantta

Statistics
Let's pretend the Work variable is normally distributed, with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 68 percent of students work between ______ and ______ hours per week. Select the TWO numbers ...
November 4, 2011 by Sarah

statistics
A manufacturer wishes to estimate the reliability (in months) of a certain product. An estimate of the population standard deviation from a previous sample was 12 months. If the manufacturer desires to be within 4 months of the true value with approximately 80% confidence, ...
November 8, 2011 by Larry

math
The length of Paulo’s lunch break follows a normal distribution with mean μ minutes and standard deviation 5 minutes. On one day in four, on average, his lunch break lasts for more than 52 minutes. Find the value of μ.
February 13, 2014 by sanjay

Finance
Jean will receive $8,500 per year for the next 15 years from her trust. If a 7% interest rate is applied, what is the current value of the future payments? Describe how you solved this problem, including which table (for example, present value and future value) was used and why.
November 23, 2009 by Anonymous

Math
If the population standard deviation is   8, how large a sample is necessary to have a standard error that is: a. less than 4 points? b. less than 2 points? c. less than 1 point?
February 1, 2013 by Tracy

statistics
Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long (The Wall Street Journal, October 12, 2012). A ...
November 16, 2014 by sean

math
Suppose a test of musical ability has a normal distribution with a mean of 50 and a standard deviation of 5. Approximately what percentage of people are over 55? a. 6% b. 16% c. 45% d. 84% A z-score of 1.75 indicates how many standard deviation units above the mean? a. 1.75 b...
May 8, 2010 by Amanda

financial management
A capital project has an initial investment of $100,000 and cash flows in years 1-6 of $25,000, $10,000, $50,000, $10,000, $10,000, and $60,000, respectively. Given a 15 percent cost of capital, •(a) compute the net present value. . •(b) compute the internal rate of return...
April 14, 2014 by lori

Statistics- Math
One student scored 54 on a math test for which the mean score was 50.5 and the standard deviation was 3.2. Another student scored 80 on a chemistry test for which the mean score was 75.2 and the standard deviation was 5.2. Which student (math or chemistry) had a "better" score...
February 17, 2012 by Kerrin

Math statistisc
I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times in order to have the ...
March 5, 2013 by Bonnie

Math statistisc
I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times in order to have the ...
March 5, 2013 by Bonnie

Math statistisc
I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times in order to have the ...
March 5, 2013 by Bonnie

Business Statistics
Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long (The Wall Street Journal, October 12, 2012). A ...
October 22, 2014 by Noah

statistics
The cholestetol levels of young women aged 20 to 34 vary with a mean of 185 milligrams per decliter and standard deviation 39 mg/dl. What cholesterol level would be a young woman have in this age group if they were 2 standard deviations below the mean?
September 3, 2012 by Gee

statistics
Question 1 Question 1 1. Question 1 text The head of the History Department wants to compare the averages of 2 different instructor’s to see if they differ. A sample of 15 students in Instructor A’s class has average of 74 with a standard deviation of 11. A sample of 12 ...
January 9, 2010 by jeff

Math
The present value of the money in your savings acct is $420, and you're receiving 3% annual interest compounded monthly. What is the future value in 2 months?
May 27, 2012 by melissa

Chemistry
I conducted a Gas Chromatography experiment using Flame Ionisation Detector (FID).A capillary column was used. 1)Blank 2) Standard 3) Sample 4)Blank 5)Standard The above was injected into the system. In 2)Standard chromatogram,a sharp, thin peak was observed between the 2 ...
February 18, 2012 by mandy

statistics
a towns average snowfall is 33 inches per year with a standard deviation of 11 inches. how many standard deviations from the mean is a snowfall of 66 inches
March 9, 2013 by marie

Statistics
IQ score are normally distributed with a mean of 95 and a standard deviation of 17. If the sample size is n=36 find the mean and standard distribution of sample mean
April 7, 2013 by Megan

Normal distribution
The breaking strength of cable is known to be normally distributtes with a mean of 4000 kg and a standard deviation of 25 kg.The manufacturer prefers that at least 95% of his product meet a strength requirement og 4050 kg.is that requirement being met?if not. by changing the ...
December 22, 2010 by Jhon

STATISTICS
You are performing a cohort study to look at risk factors for breast cancer in postmenopausal women. If the probability of developing breast cancer among smokers is .05 for the study duration, then if you sample 100 smokers, how many do you expect to develop the disease? Give ...
August 6, 2013 by Susie

STATISTICS
You are performing a cohort study to look at risk factors for breast cancer in postmenopausal women. If the probability of developing breast cancer among smokers is .05 for the study duration, then if you sample 100 smokers, how many do you expect to develop the disease? Give ...
August 7, 2013 by Susie

STATISTICS
You are performing a cohort study to look at risk factors for breast cancer in postmenopausal women. If the probability of developing breast cancer among smokers is .05 for the study duration, then if you sample 100 smokers, how many do you expect to develop the disease? Give ...
August 10, 2013 by smoothjive

math
How do you find the Standard Deviation of 2, 5, 47, 11, 13, 48, 39, 36
January 10, 2010 by Rmz

math
what is the standard deviation of these numbers 7 9 7 10 8 7 9
January 24, 2011 by keke

statistics
How do you find standard deviation?
February 27, 2012 by Allie

math
what is the sample standard deviation of 12 12 14 16 17 18 21 21
October 4, 2012 by tina

present annuity
What is the present value of an annuity that consists of 28 monthly payments of $260 at an interest rate of 8% per year, compounded monthly? (Round your answer to the nearest cent).
December 11, 2011 by rachel

Maths
A psychological test was given to 92 teenage boys and 68 teenage girls. The test was used to assign a score to each teenager, measured on the ‘worry scale’ – 0 (not worried) to 100 (very worried). A summary of the results is given in the table below. Girls; Sample Size 68 ...
May 12, 2011 by Tony

Statistics
On standard IQ tests, the mean is 100 and the standard deviation is 13. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is between 61 and 139.
February 14, 2012 by Anonymous

Statistics
On standard IQ tests, the mean is 120 and the standard deviation is 18. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is less than 156.
February 14, 2012 by Anonymous

Statistics
On standard IQ tests, the mean is 110 and the standard deviation is 15. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is less than 155.
February 14, 2012 by Anonymous

Math
You have to choose a battery brand to use in your smoke alarm. Company A's batteries have a mean lifespan of 1.2 years, with a standard deviation of 0.1 years. Company B's batteries have a mean lifespan of 1.5 years, with a standard deviation of 0.9 years. Which brand would ...
April 29, 2014 by Chloe

statistics
You are the manager at a company and are asked to present a report on the year-to-date performance of your division. What type of statistical information would you include in your report? In paticular, which descriptive statistics (mean,median, standard deviation,etc.) do you ...
June 21, 2011 by triplec

statistic
In a population of exam scores, a score of X  48 corresponds to z1.00 and a score of X  36 corresponds to z  –0.50. Find the mean and standard deviation for the population. (Hint: Sketch the distribution and locate the two scores on your sketch.) A sample consists of the ...
January 26, 2013 by Nickie

Finance
Veggie Burgers, Inc., would like to maintain its cash account at a minimum level of $246,400; but expect the standard deviation in net daily cash flows to be $13,600; the effective annual rate on marketable securities to be 4.8 percent per year; and the trading cost per sale ...
May 15, 2010 by Hans

accounting
In recent years, there has been a lot of media coverage about the funding status of pension plans for state employees. In many states, the amount of money invested in employee pension plans is far less than the amount estimated to be needed to pay them the retirement benefits ...
May 6, 2014 by Tyler

math ,correction
is this right? Find the standard deviation to the given data. The manager of a small dry cleaner employs six people. As part of their personnel file, she asked each one to record to the nearest one-tenth of a mile the distance they travel one way from home to work. THe six ...
July 13, 2007 by student

math
The present value of the money in your savings account is $420, and you're receiving 3% annual interest compounded monthly. What is the future value in two months?
November 15, 2010 by Anonymous

Math
The present value of the money in your savings account is $420, and you're receiving 3% annual interest compounded monthly. What is the future value in two months?
May 4, 2012 by Paige

business stat
1. Suppose quality control inspectors at the coffee house chain take a sample of 100 pieces of this chocolate product from an incoming shipment. They find a sample average of 60% cacao with a standard deviation of 8%. What is the standard error of the sampling distribution of ...
July 23, 2012 by kristin

statistics
A professor informs her class that a test is very difficult, but the grades will be curved. Scores for the test are normally distributed with a mean of 25 and a standards deviation of 5. If she curves the grades by adding 50 to each grade, What is the new mean? What is the new...
April 28, 2012 by Sabrina

statistics
a towns snowfall in december averages 13 inches with a standard diviation of 8 inches while in february the average snowfall is 40 inches with a standard deviation of 13 in which month is it more likey to snow 32 inches. explain
February 9, 2013 by amy

123
A sample of size 50 has mean 20 and deviation 5. The value at highest concentration point is 16. It was later discovered that an item 12 was misread 30, find the value of coefficient of skewness
November 19, 2011 by Anonymous

Statistics
Part 1) Exposure to dust at work can lead to lung disease later in life. In a study of 115 drill and blast workers involved in tunnel construction the mean dust exposure was 18.0 mg-yr/m^3 with a standard deviation of 7.8 mg-yr/m^3 (sample 1). Another study of 220 outdoor ...
March 7, 2011 by Rob

chemistry
A scientist measures the standard enthalpy change for the following reaction to be -53.4 kJ : Ca(OH)2(aq) + 2 HCl(aq) CaCl2(s) + 2 H2O(l) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O(l) is kJ/mol
March 18, 2012 by Austin

chemistry
A scientist measures the standard enthalpy change for the following reaction to be -53.4 kJ : Ca(OH)2(aq) + 2 HCl(aq) CaCl2(s) + 2 H2O(l) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O(l) is kJ/mol
March 18, 2012 by Austin

math
The diameter of an electric cable is normally distributed, with a mean of 0.9 inch and a standard deviation of 0.02 inch. What is the probability that the diameter will exceed 0.92 inch? (You may need to use the standard normal distribution table. Round your answer to three ...
December 3, 2013 by Anonymous

statistics
1. I took a sample of the grade point averages for students in my class. For 25 students, the standard deviation of grade points was 0.65 and the mean was 2.89. The standard error for the sample was:
August 11, 2013 by CHIMI

statistics
A statistics practitioner formulated the following hypothesis: Ho: population mean=200 H1: population mean<200 sample mean=190 n=9 population standard deviation=50 Calculate the p-value of the test
March 19, 2010 by Adam

math
Suppose the standard deviation is 13.1. What is the variance?
November 13, 2009 by sandra

statistics
what is the probability of 62 with a mean of 60 and a standard deviation of 7?
July 19, 2010 by beverlt

statistics
with a mean of 60 and standard deviation of 7, what is the z score at 1.64?
May 25, 2011 by jackie

Math 110
finding the standard deviation of 15, 20, 30, 35
November 28, 2011 by April

Budgeting
A quaint but well-established coffee shop, the Hot New Café, wants to build a new café for increased capacity. It’s expected sales are $800,000 for the first 5 years. Direct costs including labor and materials will be 50% of sales. Indirect costs are estimated at $100,000 a ...
March 9, 2013 by Shannon

finance
The countries of Stabilato and Variato have the following average returns and standard deviations for their stocks, bond, and short-term government securities. What range of returns should you expect to earn 95 percent of the time for each asset class if you invested in ...
November 25, 2014 by jenny

statistics
Suppose that, in fact, the blood cholesterol level of all men aged 20 to 34 follows the normal distribution with mean of u = 188 milligrams per deciliter (mg/dl) and standard deviation = 41 mg/dl. 1. Choose an SRS of 100 men from this population. What is the sampling ...
February 4, 2013 by Zachovia

statistics
AAA reports that the average age of a car on U.S. roads in recent years has risen to 7.5 years. Suppose that the distribution of the age of automobiles assumes a mound shaped distribution. If 99.7% of the ages are between 1 year and 14 years, what is the value of the standard ...
September 14, 2014 by Anonymous

College Stats
A machine fills 64 ounce detergent jugs. It is known that the net amount of detergent poured into each jug has a normal distribution with a standard deviation of 0.35 ounces. The inspector wants to adjust the machine such that at least 95% of the jugs have more than 64 ounces ...
October 28, 2008 by Riley

statistics
Which is relatively better a score of 48 on psychology test or a score of 52 on an economics test, Scores on the psychology test have a mean of 87 and a standard deviation of 14. Scores on the economics test have a mean of 53 and a standard deviation of 8.
October 27, 2013 by angela

math help
A survey was done recently by the Royal Bank with Ipsos Reid (reported in Globe and Mail Aug 16 2010) about financial issues that university students face. (Data used here is based on that survey, but randomized to be still within the margin of error of that survey.) The ...
October 2, 2010 by jaz

stats
A survey was done recently by the Royal Bank with Ipsos Reid (reported in Globe and Mail Aug 16 2010) about financial issues that university students face. (Data used here is based on that survey, but randomized to be still within the margin of error of that survey.) The ...
October 2, 2010 by jaz

Another Math Statistical Question
Assume Coca Bottling is a company producing power drinks. You visited the company and did a sampling of 15 bottles to figure out the average volume of the bottle. You recorded the following data: 17, 16, 17.5, 16.7, 17.3, 15, 17.2, 17, 17.2, 16.8, 17.3, 16.9, 17.4, 17.7, 17.1 ...
May 12, 2008 by Johnny

advanced algebra
The mean test scores with standard deviations of four English classes are given below. Class Mean Standard Deviation Mrs. Jones 89 1.9 Mrs. Rijo 82 1.4 Mr. Phan 73 3.4 Mrs. Scott 90 6.1 Which statement is most likely to be true?
September 22, 2014 by nautica

finance
The required investment is $1 million, and anticipated year-end cash flows are as follows: Year 1 2 3 4 Cash flow $300,000 $400,000 $500,000 $200,000 Compute the net present value rate of return using a 10 percent required return. What should be decision rule in this example.
January 16, 2012 by goshtaba

physics
A ball was shot from the angles given in the table below. The corresponding ranges (landing at the same height from which it is shot) for three trials are given below as well. A. Determine the average range and standard deviation for each angle. B. Next calculate the initial ...
October 20, 2010 by Meghan

Statistics
The heights of the students in a statistics class are approximately normal with mean 68 inches and a standard deviation of 2.75 inches. Suppose that the heights of the 15 male students in the statistics class are also approximately normal with mean 71 inches. Would the ...
January 15, 2011 by Alex

math
No idea how to do this. I looked in my book and there usually is a data set present to get the first, second and third quartile. The lifetimes of lightbulbs of a particular type are normally distributed with a mean of 392 hours and a standard deviation of 9 hours. Find the ...
April 22, 2007 by J

Business Finance
Neville Corporation, an amusement park, is considering a capital investment in a new exhibit. The exhibit would cost $174,777 and have an estimated useful life of 9 years. It will be sold for $69,200 at that time. (Amusement parks need to rotate exhibits to keep people ...
July 3, 2012 by Francesca

statistics
once again I am not getting this. assume that the population of heights of male college students is normally distibuted with a mean of 69.09 and standard deviation of 4.71. A random sample of 92 heights is obtained. find the mean and standard error of the x distribution. find ...
September 19, 2011 by denise

statistics
A specific study found that the average number of doctor visits per year for people over 55 is 8 with a standard deviation of 2. Assume that the variable is normally distributed. 1. Identify the population mean. 2. Identify the population standard deviation. 3. Suppose a ...
April 15, 2013 by Cam

statistics
A machine is designed to fill jars with 16 ounces of coffee. A consumer suspects that the machine is not filling the jars completely. A sample of 8 jars has a mean of 15.6 ounces and a standard deviation of 0.3 ounce. Is there enough evidence to support the consumer's ...
August 2, 2013 by ryan

algebra
The heights of the trees in a forest are normally distributed, with a mean of 25 meters and a standard deviation of 6 meters. What is the probability that a randomly selected tree in the forest has a height greater than or equal to 37 meters? Use the portion of the standard ...
January 6, 2015 by Alison Magana

Math Help!
A.) Determine "a" and "k" so both points are on the graph of the function. 1.) (0,1) (2,1); y=a(x-1)^2+k 2.) (1,11) (2,-19); y=a(x+1)^2+k B.) Determine whether or not the function f(x)=0.25(2x-15)^2+15 has a mazimum or a minimum value. Then find the value. C.) When y=2(x-3)(x+...
January 21, 2014 by Lanie

math
a=16,00, r=11.5%, t=5 years determine the present value, p, you must invest to have the future value, a, at simple interest rate r after time t. round uo to nearest cent
August 14, 2011 by marie

statistics
The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures students' study habits and attitudes toward school. Scores range from 0 to 200. The mean score for college students is about 115.8, and the standard deviation is about 32.9. A teacher ...
March 1, 2011 by Yesenia

Statistics
37% of all doctors are family practitioners. If there are 300 doctors in one city, what is the standard deviation for the number of family practitioners? What is the expected value for the number of family practitioners?
September 24, 2010 by Lori

math
You are the buyer for your university bookstore. One of the textbooks has a cost to you of $104 and you sell it to students for $208. In this case, however, you cannot salvage any value from copies that do not sell because a new edition is published every semester. Demand for ...
July 17, 2012 by Candace

math
The probability that a person has immunity to a particular disease is 0.3. Find the mean and standard deviation for the random variable x, the number of people who have immunity in samples of size 28. This is a binomial distribution. mean= 28*.3 standard deviation= sqrt (28*.3...
August 18, 2007 by manny

AP
The composite scores of students on the ACT college entrance examination in a recent year had a Normal distribution with mean µ = 20.4 and standard deviation = 5.8. 1) What is the probability that a randomly chosen student scored 24 or higher on the ACT? 2) What are the mean ...
February 2, 2011 by Erica L

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