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August 2, 2014

Homework Help: Math: Statistics

Recent Homework Questions About Statistics

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statistics
Simple question I may be over thinking 30. Gift Baskets: The Gift Basket Sore had the following premade gift baskets containing the following combinations in stock. cookies mugs candy -------------------------------------- coffee 20 13 10 tea 12 10 12 Choose 1 basket at random...
Thursday, February 20, 2014 at 11:55pm

statistics
A population is normally distributed with mean 30, population SD =10, Sample size 25. What are the mean and variance of the distribution of means, respectively?
Thursday, February 20, 2014 at 10:35pm

Statistics
Astronomers treat the number of stars in a given volume of space as a Poisson random variable. The density in the Milky Way Galaxy in the vicinity of our solar system is one star per 16 cubic light years. (a) What is the probability of three or more stars in 16 cubic light ...
Thursday, February 20, 2014 at 8:16pm

Statistics
An electronic product contains 32 integrated circuits. The probability that any integrated circuit is defective is 0.02, and the integrated circuits are independent. The product operates only if there are no defective integrated circuits. What is the probability that the ...
Thursday, February 20, 2014 at 7:41pm

Statistics
2. On a certain anxiety questionnaire, the population is known to have a mean of 12 and a standard deviation of 2.3. A higher score represents higher levels of anxiety. Participants in a new relaxation program complete the questionnaire after completing the program, and have a...
Wednesday, February 19, 2014 at 11:22am

Statistics
1. A company decides to add a new program that prepares randomly selected sales personnel to increase their number of sales per month. The mean number of sales per month for the overall population of sales people at this national company is 25 with a standard deviation of 4. ...
Wednesday, February 19, 2014 at 11:20am

statistics
Suppose you have information that the average stress score of students in online activities is 13.15. Using Minitab, compute a one sample t-test to find out whether the stress scores reported by your sample are significantly different from those of the population of online ...
Wednesday, February 19, 2014 at 9:01am

Statistics
Disk of ploycarbonate plastic form a supplier are anaylzed for scratcha nd shock resistance. the results from 100 disks are summarized below: Shock Resistance high low Scratch high 70 9 resistance low 16 5 Let A denote the even that a disk has high shock resistance, and let B ...
Tuesday, February 18, 2014 at 5:38pm

Statistics
The probability that Jack plays guitar on a raining day is 0.6 and on a sunny day is 0.5. The probability that is rains tomorrow is 0.8. Find the probability that Jack will not play guitar tomorrow? Is it 32%?
Tuesday, February 18, 2014 at 5:19pm

Statistics
Hats in a box problem
Tuesday, February 18, 2014 at 4:37pm

statistics
Suppose you have information that the average stress score of students in online universities is 13.15. The scores are 16, 20, 15, 12, and 14
Tuesday, February 18, 2014 at 10:24am

statistics
The personnel office at a large electronics firm regularly schedules job interviews and maintains records of the interviews. From the past records, they have found that the length of a first interview is normally distributed, with mean μ = 31 minutes and standard ...
Tuesday, February 18, 2014 at 1:04am

statistics
The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.4 minutes and a standard deviation of 3 minutes. Assume that the distribution of taxi and takeoff times is approximately normal. You may assume that the jets are lined up on a runway so that ...
Tuesday, February 18, 2014 at 1:01am

statistics
Suppose x has a normal distribution with mean μ = 35 and standard deviation σ = 9. (a) Describe the distribution of x values for sample size n = 4. (Use 2 decimal places.) μx = σx = (b) Describe the distribution of x values for sample size n = 16. (Use 2 ...
Tuesday, February 18, 2014 at 1:00am

statistics
Suppose that each unit of a system is up with probability 2/3 and down with probability 1/3. Different units are independent. For each one of the systems shown below, calculate the probability that the whole system is up (that is, that there exists a path from the left end to ...
Monday, February 17, 2014 at 8:34pm

statistics
Researchers found that 30% of the larch trees in a certain geographical area had been damaged by fungi. (No fun, guy.) Consider a sample of 20 (independent) beach trees from the area. (a) What is the probability that fewer than half are damaged by fungi? (b) What is the ...
Sunday, February 16, 2014 at 3:22pm

Statistics
a) What is sampling with replacement? (b) What is sampling without replacement? c) How does sampling without replacement affect the probability of events, compared to sampling with replacement?
Sunday, February 16, 2014 at 3:30am

statistics
Below are six data sets with 6 randomly selected scores in each data set. Your task is to determine if the scores were drawn from a population with μ = 5. Before you calculate the one-sample t test for each sample, make a guess as to whether or not you think the sample ...
Saturday, February 15, 2014 at 12:17pm

Statistics
In the population of typical college students, _ 5 75 on a statistics final exam _X 5 6.42 . For 25 students who studied statistics using a new technique, X 5 72.1. Using two tails of the sampling distribution and the .05 criterion: (a) What is the critical value? (b) Is this ...
Friday, February 14, 2014 at 6:57am

Statistics
There are 100 questions from a SAT test, and they are all multiple choice with possible answers of a,b,c,d,e for each question only one answer is correct. Find the mean number of correct answers for those who make random guesses for all 100 questions?
Thursday, February 13, 2014 at 1:09pm

Statistics
The mean of a population of raw scores is 33 1_X 5 122 . Use the criterion of .05 and the upper tail of the sampling distribution to test whether a sample with X 5 36.8 1N 5 302 represents this population. (a) What is the critical value? (b) Is the sample in the region of ...
Thursday, February 13, 2014 at 2:09am

Statistics
Foofy asks a sample of students their choice in the election for class president. concludes that Poindexter will win. It turns out that Dorcas wins. What is the statistical explanation for Foofy’s erroneous prediction?
Thursday, February 13, 2014 at 1:57am

Statistics
A couple with eight daughters decides to have one more baby, because they think this time they are sure to have boy! Is this reasoning accurate?
Thursday, February 13, 2014 at 1:55am

Statistics
Height (ft) Interval after (min) 96 68 111 80 76 66 91 72 66 58 108 79 116 84 91 79 The data show the time intervals after an eruption (to the next eruption) of a certain geyser. Find the regression equation, letting the first variable be the independent (x) variable. Find the...
Wednesday, February 12, 2014 at 10:15pm

Statistics
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 624 babies were born, and 312 of them were girls. Use the sample data to construct a 99% confidence interval estimate of the percentage of girls born. Based on the result, ...
Wednesday, February 12, 2014 at 10:14pm

Statistics
Critical Values for the Correlation Coefficient n alpha = .05 alpha = .01 4 0.95 0.99 5 0.878 0.959 6 0.811 0.917 7 0.754 0.875 8 0.707 0.834 9 0.666 0.798 10 0.632 0.765 11 0.602 0.735 12 0.576 0.708 13 0.553 0.684 14 0.532 0.661 15 0.514 0.641 16 0.497 0.623 17 0.482 0.606 ...
Wednesday, February 12, 2014 at 10:14pm

Statistics
Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the data to construct a 90% ...
Wednesday, February 12, 2014 at 10:13pm

Statistics
An IQ test is designed so that the mean is 100 and the standard deviation is 19 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 95% confidence that the sample mean is within ...
Wednesday, February 12, 2014 at 10:12pm

statistics
A false positive rate of 5% is considered to be a conservative estimate. Suppose that there are 20 employees in your company, which tests its workers weekly. What is the probability of no false-positives for this week’s test?
Wednesday, February 12, 2014 at 7:58pm

statistics, math, college
if np >5 and nq>5 estimate P (fewer than 4) with n=13 p=0.4 by using normal distribution as an approximate to the binomial distribution if np <5 or nq< then state that the normal approximation is not suitable
Tuesday, February 11, 2014 at 7:37pm

us equality essay edit
its a rough draft and obviously isnt the entire thing The United States has diagnosed itself as one unified nation, indivisible, with liberty and justice for all. So cultivates the question- are the citizens of such an independent country truly free? The validity of the United...
Tuesday, February 11, 2014 at 6:32pm

Statistics
The mean of a distribution of 1000 individuals' blood pressure is 85. If this number were translated into a Z score it would be equal to +1 standard deviations. True or False? I know to calculate a Z score the formula is Z= (X-sub-i minus the mean)/ standard deviation. the...
Tuesday, February 11, 2014 at 4:05pm

STATS
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms. Using the 68-95-99.7 rule, what is the lower bound for the weight of the top 2.5% of students?
Tuesday, February 11, 2014 at 1:35pm

statistics, math, college
assume that adults have I.Q scores that are normally distributed with a mean of 100 and a standard deviation 15. find p2 which is the IQ score seperating bottom 2% from the top 98%
Tuesday, February 11, 2014 at 10:46am

Statistics in Psychology
19. You measure how much people are initially attracted to a person of the opposite sex and how anxious they become during their first date. For the following ratio data, answer the questions below. Participant Attraction X Anxiety Y 1 2 8 2 6 14 3 1 5 4 3 8 5 6 10 6 9 15 7 6 ...
Monday, February 10, 2014 at 10:52pm

Behavioral Statistics
I need someone to explain HOW to do this..I don't want just the answer I have got to figure out how to do this before my mid-term, and I'm completely clueless! 3. One of the major U.S. tire makers wishes to review its warranty for their rainmaker tire. The warranty is ...
Monday, February 10, 2014 at 9:23pm

statistics
The assets(in billions of dollars) of the four wealthiest people in a particular country are 43,25,21,15 assume that samples of size n=2 are randomly selected
Monday, February 10, 2014 at 8:00pm

STATS
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms. B. What percent of students have weights greater than 80.1 kilograms?
Monday, February 10, 2014 at 4:02pm

Statistics
A researcher measures how positive a person’s mood is and how creative he or she is, obtaining the following interval scores: Participant Mood X Creativity Y 1 10 7 2 8 6 3 9 11 4 6 4 5 5 5 6 3 7 7 7 4 8 2 5 9 4 6 10 1 4 (a) Compute the statistic that summarizes this ...
Monday, February 10, 2014 at 3:49pm

STATS
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms. A. 45% of the student weights are above ____ kilograms? Z=.3264=x-75.5/10.3 Now what?
Monday, February 10, 2014 at 3:17pm

Statistics
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms. A. 45% of the student weights are above ____ kilograms? Z=.3264=x-75.5/10.3 Now what? I am lost! Please help me! Thanks!
Monday, February 10, 2014 at 2:12pm

Statistics
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms. A. 45% of the student weights are above ____ kilograms? Z=.3264=x-75.5/10.3 Now what? I am lost! Please help me! Thanks!
Monday, February 10, 2014 at 2:12pm

Research and Statistics
What does truncated range?
Monday, February 10, 2014 at 2:10pm

statistics
The test scores of students in a class test have a mean of 65 and with a standard deviation of 8. What is the probable percentage of students scored more than 70? Please check work 70-65/8 = .625 = .2357 = 1.-.2357 = .7643 ANSWER 76% ????
Monday, February 10, 2014 at 2:06pm

Statistics
(a) For the relationship in question 19, what is the proportion of variance accounted for? (b) What is the proportion of variance not accounted for? (c) Why or why not is this a valuable relationship?
Monday, February 10, 2014 at 2:02pm

Research and Statistics
What factors influence the size of the t-statistics( mean difference, variance, sample size) and which way?
Monday, February 10, 2014 at 1:47pm

Statistics in Psychology
A researcher finds that the correlation between variable A and variable B is r= 5 1.20. She also finds that the correlation between variable C and variable B is r= 5 2.40. Which relationship is scientifically more useful and by how much?
Monday, February 10, 2014 at 1:18pm

Statistics in Psychology
What research steps must you go through to use the relationship between a person’s intelligence and grade average in high school so that, if you know a person’s IQ, you can more accurately predict the person’s grade average?
Monday, February 10, 2014 at 1:17pm

statistics
Population Mean: 170 STD: 62.3 Sample size 100 95% CI 99%CI
Monday, February 10, 2014 at 1:12pm

statistics
You have an observation of 55, a population mean of 48, and a standard deviation of 1.85. Therefore, the z-score would be:
Monday, February 10, 2014 at 1:10pm

statistics
The space shuttle is launched 9 times a year with a break down occurring 1/10 of the time. What is the probability that two randomly selected space shuttles launched 9 times a year and both having accidents occurring in that year?
Monday, February 10, 2014 at 1:08pm

UNM
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms. A. 45% of the student weights are above ____ kilograms? B. What percent of students have weights greater than 80.1 kilograms? C. What percent of ...
Monday, February 10, 2014 at 12:41pm

UNM
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms. 45% of the students weights are above what kilograms?
Monday, February 10, 2014 at 12:36pm

UNM
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms. What percent of students have weights greater than 80.1 kilograms?
Monday, February 10, 2014 at 12:35pm

UNM
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms. 42% of the students weights are above what kilograms?
Monday, February 10, 2014 at 12:24pm

statistics
Provide the Z score and the critical value. Raw score of 112, population mean 89, Std. of the population (22.8)
Monday, February 10, 2014 at 12:03pm

statistics
The test scores of students in a class test have a mean of 65 and with a standard deviation of 8. What is the probable percentage of students scored more than 70?
Monday, February 10, 2014 at 12:02pm

statistics
A multiple choice exam has 20 questions; there are four choices for each question. A student guesses the answer to every question. Find the chance that he guesses correctly between four and seven times. Find the minimum score the instructor can set so that the probability that...
Monday, February 10, 2014 at 11:50am

Statistics
Age at onset of dementia was determined for a sample of adults between the ages of 60 and 75. For 15 subjects, the results were SumX=1008, and Sum(X-M)^2=140.4. Use this information to answer the following: a. What is the mean and SD for this data? b. Based on the data you ...
Monday, February 10, 2014 at 11:27am

Statistics
Age at onset of dementia was determined for a sample pf adults between the ages of 60 and 75. For 15 subjects, the results were SumX=1008, and Sum(X-M)^2=140.4. Use this information to answer the following: a. What is the mean and SD for this data? b. Based on the data you ...
Monday, February 10, 2014 at 9:03am

STATISTICS
What research steps must you go through to use the relationship between a person’s intelligence and grade average in high school so that, if you know a person’s IQ, you can more accurately predict the person’s grade average?
Monday, February 10, 2014 at 5:29am

Physics
You buy yourself a new Lamborghini which can accelerate from 0 to 62 mph in 2.5 seconds. 1.) what is the magnitude of the car's acceleration in SI units? 2.)the latest figures on speeding related car accident fatalities show 32788 deaths per year in the united states. in ...
Sunday, February 9, 2014 at 8:31pm

statistics
Find the probability that among six randomly selected people, exactly four of them have brown eyes. Assume that 40% of the population has brown eyes
Sunday, February 9, 2014 at 6:15pm

Research and Statistics
Explain how to accept and reject the null? How to identify the null and alternative hypothesis for t-tests in both statistical and experimental hypothesis?
Sunday, February 9, 2014 at 3:38pm

statistics
The height of an adult male is known to be normally distributed with a mean of 69 inches and a standard deviation of 2.5 inches. The height of the doorway is 74 inches. What proportion of adult males will not fit under the door?
Sunday, February 9, 2014 at 2:11pm

Data apps and healthcare statistics
what are the categories of information systems, examples of each and their roles in the healthcare delivery
Sunday, February 9, 2014 at 1:32am

statistics
Suppose a Stat 1450 web class has 15 males (8 are also students at OSU) and 12 females (7 are also students at OSU). What is the probability that a randomly selected student is either female, or also a student at OSU? Submit answer in decimal form and round to the nearest ...
Saturday, February 8, 2014 at 5:10pm

statistics
A multiple choice test has 3 questions and each question has 3 choices. If Nacho takes this test, what is the probability that he will: (a)answer all questions correctly? (b)answer all questions wrong? (c)answer two questions correctly?
Friday, February 7, 2014 at 11:05pm

statistics
a sample of men's heights was taken. The average height was 68.5 inches, the SD was 1.95 inches. Use the normal curve to estimate the percentage of men with heights between 69 inches and 70 inches.
Friday, February 7, 2014 at 10:11pm

Statistics
Determine if the following are probability distributions (if no, state why). a. X 3 6 9 12 15 P(X) 4/9 2/9 1/9 1/9 1/9
Friday, February 7, 2014 at 7:06pm

Statistics
If the population is normally distribution then the sample must be normally distributed even for small sample size? True or False. The variance of the standard normal distribution is always equal to 1.? True or False. A continuous random variable may not be normally ...
Friday, February 7, 2014 at 4:25pm

Statistics
A salesperson goes door-to-door in a residential area to demonstrate the use of a new Household appliance to potential customers. She has found from her years of experience that after demonstration, the probability of purchase (long run average) is 0.30. To perform ...
Friday, February 7, 2014 at 4:23pm

Statistics
A salesperson goes door-to-door in a residential area to demonstrate the use of a new Household appliance to potential customers. She has found from her years of experience that after demonstration, the probability of purchase (long run average) is 0.30. To perform ...
Friday, February 7, 2014 at 4:15pm

statistics
how do the 4th grade girls weight in principal ben's school compare to the national mean weigh = 90 sd=15
Thursday, February 6, 2014 at 9:58pm

statistics
howdo i find the square root of -2
Thursday, February 6, 2014 at 12:27am

statistics
A neuropsychologist is interested only in studying the most deviant portion of this population, that is, those individuals who fall within the top 10% and the bottom 10% of the distribution. She must determine the ages that mark these boundaries. What are these ages?
Wednesday, February 5, 2014 at 11:29am

statistics
A study was conducted to count the different age groups of kids that usually play in a park on a Sunday morning. The following data was collected Years Old Number of Kids 1 3 2 22 3 8 4 16 5 9 a) List the simple events of the experiment. b) What is the probability of each ...
Tuesday, February 4, 2014 at 6:00pm

statistics
A study was conducted to count the different age groups of kids that usually play in a park on a Sunday morning. The following data was collected Years Old Number of Kids 1 3 2 22 3 8 4 16 5 9 a) List the simple events of the experiment. b) What is the probability of each ...
Tuesday, February 4, 2014 at 5:59pm

STATISTICS
1. 28 young adults are asked how much time they spend, in minutes, per week on Pokémon. Their responses are shown below. 96 17 97 35 24 57 27 34 87 5 21 87 6 52 2 66 18 29 84 39 19 37 63 58 39 10 51 75 QUESTION IS THIS SAMPLE OR POPULATION?
Tuesday, February 4, 2014 at 11:04am

Statistics in Psychology
Please help. Thank you in advance for your time. In an English class last semester, Foofy earned a 76 (x¯= 85, Sx= 10). Her friend, Bubbles, in a different class, earned a 60 (x¯= 50, Sx = 4). Should Foofy be bragging about how much better she did? Why?
Monday, February 3, 2014 at 12:20pm

Statistics in Psychology
Please help with this question, THANK YOU in advance. A line should be over the top of both X’s. In an English class last semester, Foofy earned a 76 (X = 85, Sx = 10). Her friend, Bubbles, in a different class, earned a 60 (X=50, Sx = 4). Should Foofy be bragging about ...
Monday, February 3, 2014 at 11:48am

Statistics in Psychology
Please help me with both of these questions. THANK YOU in advance for your for you help. 13. For the data, 9 5 10 7 9 10 11 8 12 7 6 9 (a) Compute the z-score for the raw score of 10. (b) Compute the z-score for the raw score of 6. 14. For the data in question 13, find find ...
Monday, February 3, 2014 at 11:25am

Statistics
For an IQ test, we know the population n=100 and the ox = 16. We are interested in creating the sampling distribution when N = 64. (a) What does that sampling distribution of means show? (b) What is the shape of the distribution of IQ means and the mean of the distribution? (c...
Monday, February 3, 2014 at 11:21am

Statistics
As part of studying the relationship between mental and physical health, you obtain the following heart rates: 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78 In terms of differences in heart rates, interpret these data using the following: (a) the range, (b) the variance, ...
Sunday, February 2, 2014 at 10:31pm

Statistics
Please help me with this question: For an IQ test, we know the population  5 100 and the X 5 16. We are interested in creating the sampling distribution when N 5 64. (a) What does that sampling distribution of means show? (b) What is the shape of the distribution of IQ...
Sunday, February 2, 2014 at 7:27pm

Statistics in Psychology
QUESTION 25: In a study you obtain the following data representing the aggressive tendencies of some football players:40 30 39 40 41 39 31 28 33(a) Researchers have found that  is 30 in the population of nonfootball players, 1X 5 5. 2 Using both tails of the sampling ...
Sunday, February 2, 2014 at 4:43pm

Statistics
Foofy says a deviation of +5 is always better than a deviation of -5. Why is she correct or incorrect?
Sunday, February 2, 2014 at 3:31pm

Statistics
As part of studying the relationship between mental and physical health, you obtain the following heart rates: 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78
Sunday, February 2, 2014 at 3:02pm

Statistics
Assume that the data in question 25 reflect a highly skewed interval variable. (a) What statistics would you compute to summarize these conditions? (b) We compute them to be 14, 12, and 8.5, respectively. What conclusion about the study should you draw?(c) What conclusion ...
Sunday, February 2, 2014 at 3:00pm

Statistics
What does the empirical rule say about the proportion of players who are between 62.7 inches and 75.3 inches? c.
Sunday, February 2, 2014 at 2:58pm

Statistics
In a normal distribution of scores, four participants obtained the following deviation scores: +1, -2, +5, and -10. (a) Which score reflects the highest raw score? (b) Which score reflects the lowest raw score? (c) Rank-order the deviation scores in terms of their frequency, ...
Sunday, February 2, 2014 at 2:58pm

Psychology (statistics)
Assume that the data in question 25 reflect a highly skewed interval variable. (a) What statistics would you compute to summarize these conditions? (b) We compute them to be 14, 12, and 8.5, respectively. What conclusion about the study should you draw? (c) What conclusion ...
Sunday, February 2, 2014 at 11:41am

Psychology (statistics)
In an English class last semester, Foofy earned a 76 1X 5 85, SX 5 10). Her friend, Bubbles, in a different class, earned a 60 1X 5 50, SX 5 4). Should Foofy be bragging about how much better she did? Why?
Sunday, February 2, 2014 at 11:40am

Statistics
A study was conducted to investigate the effect of management training on the decisionmaking abilities of supervisors in a large corporation. Sixteen supervisors were selected and eight were randomly chosen to receive managerial training. Four trained and four untrained ...
Sunday, February 2, 2014 at 11:23am

Statistics
Data below corresponds to sample weights of two different types (A and B) of Tuna. We want to test at significance level = .05 if the two tuna populations from which the samples come have the same variance. A .99 1.92 1.23 .85 .65 .69 .6 .53 1.41 1.12 .63 .67 .6 .66 1.9 ...
Sunday, February 2, 2014 at 11:21am

Statistics
In a normal distribution of scores, four participants obtained the following deviation scores: 11, 22, 15, and 210. (a) Which score reflects the highest raw score? (b) Which score reflects the lowest raw score? (c) Rank-order the deviation scores in terms of their frequency, ...
Sunday, February 2, 2014 at 1:44am

Statistics
If I choose 5 cards at random, how many ways are there to get a full house?
Sunday, February 2, 2014 at 1:02am

statistics
Height of children in kindergarten described by normal mode with mean 39.2 inches and standard deviation of 1.9 inches. What percent of children can expect to be less than 38 inches tall?
Saturday, February 1, 2014 at 9:36pm

Statistics
Pine Pizza Palace sells pizza plain or with one or more of the following toppings: pepperoni, sausage, mushrooms, olives,onions, or anchovies. (six toppings or plain) How many different pizzas can be made? (Hint: A person can select or not select each item.)
Saturday, February 1, 2014 at 9:34pm

statistics for managers
Several statistical tests have a way to measure effect size. What is this, and when might you want to use it in looking at results from these tests on job related data?
Thursday, January 30, 2014 at 10:14pm

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