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September 3, 2014

Search: Stats- NEED HELP

Number of results: 30,615

stats
is there a good, relevant sites where i can get stats extra help?
October 11, 2007 by Keirson

Statistics
I need to do a project for ap stats. It can be anything im interested in, and i have to perform some tests and all that I need some ideas!! Somthing that would be interesting..
May 28, 2008 by MJ

C++ Programming
Design and create a class named Stats that has an array of 12 doubles as one of its member variables. The values in the array should be set by making 12 calls to a public member function named setValue that accepts two arguments, an integer indicating which value is being ...
June 8, 2010 by kyuu09

stats
using a calculator need p value on a r tailed test if the n=9 and the t is 3.204
December 2, 2011 by James

Stats
Need help finding the area under the normal curve between z = -1.0 and z = -2.0?
April 16, 2014 by Betty

business
What data and stats do you need to know in order to identify profitable nations in which to export.
October 5, 2012 by Lisa

Stats
Angela is conducting a poll on campus to determine the next student representative. How many students does she need to sample for a confidence level of 90% with a margin of error of + or - 5%?
May 14, 2011 by Ana

Stats help!
Does anyone know how to find the variance or something if only the correlation of something is given and the other way around?? I really need help with this! THANK YOU!
April 6, 2009 by ash

Stats
Could someone please explain to me how I would read a z table. I have a z score of 2.2 and I need to know what the percentages is. Then if I'm given 8% how do I find the z score?
March 5, 2013 by Bonnie

Stats
If the true population standard deviation was known to be 3, then approximately what minimum sample size would you need in an SRS (simple random sample) if you want a confidence interval for the margin of error of .5 or less?
February 21, 2011 by Anonymous

Stats
what are the upper and lower limits of the variable below? upper lower 15-19 60-69 * is there a formula i need to use for this.
September 12, 2012 by Whitney

English
I need help finding stats about saving money by using the online community for communication instead of in the actual community. How you save money by doing this
February 25, 2012 by Anonymous

Debatind/ Sose
please I really need statistics and exact examples for my debate. I can not go up there and say many people think we are too americanized. We won't win. Please give me some stats. and eg. on the topic "that australia is becoming too american" Thanks Minerva
April 18, 2008 by Minerva

Questions about stats
a non-directional hypothesis and have set your alpha at .01. You have 30 pairs of scores. What is the criterion value of r you need to equal or exceed to have a significant correlation so you can reject the null hypothesis
July 24, 2013 by Qtexas

stats
Three scholarships are available for needy students. Their values are $2,00, $2,400 and $3,000 12 students have applied and no student may receive more than one scholarship. Assuming all 12 students are in need of funds, how many different ways could the scholarship be awarded?
March 16, 2011 by Maria B

stats
a box contains 100 cards, of which 25 are numbered 1, 35 are numbered 2, 30 are numbered 3, 10 are numbered 4. One card will be drawn from the box and its number X observed. Give the probability distribution of X How in the world do I do this? do I have to manually get the ...
February 16, 2007 by Anonymous

stats
Use this z-score formula for this problem: z = (x - mean)/(sd/√n) x = 1.25, 1.50 mean = 1.35 sd = 0.25 n = 40 Calculate two z-scores, then use a z-table to determine probability between the two scores. I hope this will help get you started. stats. - Christina, Monday, ...
March 18, 2013 by Christina Ms Sue please help

STATS
Scientists wish to test the mind-readiing ability of a person who claims to have ESP. They use five cards with different and distinctive symbols( square, cicrle, triangle, line, squiggle). Someone picks a card at random and thinks about the symbol. The mind-reader must ...
October 17, 2011 by JONATHAN

stats
A human resources manager at a large company wants to estimate the proportion of employees that would be interested in reimbursement for college courses. If she wishes to be 95% confident that her estimate is within 5% of the true proportion, how many employees would need to ...
April 15, 2010 by Chad

college,stats/ PLZ HELP:( need it within nxt 6hrs
Among Canadian households, 24% have telephone answering machines. If a telemarketing company contacts 2500 households find the probability that between 625 and 650 households, inclusive, have answering machines.
April 7, 2010 by Sandra

stats
If SS = 50 and s^2 = 10, what is n?
October 2, 2012 by eric

ap stats need help
Continuous Random Variable, I Let X be a random number between 0 and 1 produced by the idealized uniform random number generator described. Find the following probabilities: a.P(0X0.4) b.P(0.4X1) c.P(0.3X0.5) d.P(0.3(<X<0.5) e.P(0.226X0.713) f.What ...
March 10, 2009 by chris

math
I've finished studying a full textbook on linear algebra and another on statistics. I've done most of the practice problems and I understand everything covered in these books very well. But I need to know more. Specifically, I'd like to understand more about: - Gauss Markov ...
April 25, 2008 by mathstudent

Stats
Construct a scatterplot for the (x, y) values below, and answer the following questions. You do NOT need to submit your scatterplot with your answer; however, show all other work. x y 1 2.5 2 5.0 3 7.5 4 10.0 5 12.5 - What would be the slope of this regression line? - Would ...
October 7, 2012 by Anonymous

Stats
A certian company enjoyed 3.5% profits in year 1 over its revenue in Year 0. In Year 2, it enjoyed 5.75% profits over Year 1. In Year 3, it posted 1.25% profits over Year 2. What single, constant profit over this period of years would have produced the same profit? The teacher...
May 4, 2011 by Anonymous

stats
a door to door sales person for a household appliance has learned from her past experience that out of 10 demonstrations of her appliaance only 4 result in actual sales. This week she needs to make at least 5 sales. At least how many demonstrations does she need to perform to ...
June 14, 2011 by jenny

stats
a door to door sales person for a household appliance has learned from her past experience that out of 10 demonstrations of her appliaance only 4 result in actual sales. This week she needs to make at least 5 sales. At least how many demonstrations does she need to perform to ...
June 14, 2011 by jenny

stats
a door to door sales person for a household appliance has learned from her past experience that out of 10 demonstrations of her appliaance only 4 result in actual sales. This week she needs to make at least 5 sales. At least how many demonstrations does she need to perform to ...
June 14, 2011 by jenny

College Stats
Is .09 less than .05?
May 8, 2011 by Carol

stats
given n=74 an x=32.find ^p and ^q
April 4, 2013 by Chris

mba stats class, help!!
a door to door sales person for a household appliance has learned from her past experience that out of 10 demonstrations of her appliaance only 4 result in actual sales. This week she needs to make at least 5 sales. At least how many demonstrations does she need to perform to ...
June 15, 2011 by jenny

Stats: need help please
two golfers plan to enter a tournament where the score will be determined as a team score. golfer x has a mean score of 85.4 and St. Deviation of 3.2 while golfer y has a mean score of 89.6 and St. deviation of 4.1. what is their expected team score and the variation ...
November 23, 2008 by Stephanie

stats
if we reject the null hypothesis, we conclude that:
April 1, 2010 by Anonymous

stats
Compute the following and show your steps 7! /5!.
August 7, 2010 by renae

stats
what does it mean to say alpha is set at 0.5
August 18, 2011 by nicole

math stats
how do i draw a histogram for the data (8,0,7,5,5)
January 24, 2012 by juan777

Stats
What is the spread? How can it be found from a set of numbers?
March 6, 2012 by Jill

math stats
Calculate p ̅. x1 20 n1 50 x2 55 n2 100
June 22, 2013 by jerry

Finance
I need help on this study problem.----- A firm computes the probability distribution of possible net present values for a project and finds that it has an expected value of $125,000 and a standard deviation of $75,000. Assuming that the distribution of net present value is ...
November 2, 2006 by Jenny

Stats
I just need help with starting how to calculate the problem I am so lost. A random sample of eight observations from the first population resulted in a standard deviation of 10. A random sample of six observations from the second population resulted in a standard deviation of ...
December 6, 2010 by Yasmin

stats
how does one make a residual plot please?
November 16, 2007 by Anonymous

Stats
What are variance and covariance? What do they mean? What are their differences/relationship?
September 22, 2008 by Blake

geography
what are some tricks that will; help me remember the stats and the capitles
February 23, 2010 by briana

stats
Let z be a random variable with a standard normal distribution, P(-1.9<=z<=2.1)
July 24, 2010 by Clay

stats
Mean is 60 and standard deviation is 7. what percentage is 73 and below.
October 12, 2010 by Christine

Stats
If a confidence interval for the mean is 24.8 < < 29.6. What is the margin of error?
November 1, 2010 by Erica

maths stats
Please unscramlbe aaeebllnn which is a name. Thanks
May 5, 2011 by orla

Stats
what is the range of data with a total of 1000 values?
September 4, 2011 by Ann james

bussi./stats
what is the probability that a loaf of bread is between 22.75 and 23.00?
September 6, 2011 by tim

STATS
If Ho: μ = 50 and Ha: mu. = 59 and s = 10 what is αlpha if x exceeds 56for n=25
March 15, 2013 by KP

stats 250
A z-score of z = +3.00 indicates a location that is the following
June 6, 2013 by Anonymous

stats
how do you construct a relative frequency table based on an ogive?
September 6, 2008 by arielle

stats
How would r change if researchers had recordered the proportions?
February 6, 2009 by kate

stats
if you know the mean and standard deviation, how do you determine the proportion that will and will not be included
November 4, 2012 by mary

stats
what is the distinction between repeated measurements and matched items?
November 27, 2012 by jason

Math/Statistics
does anyone know anyting about standard deviation... I have no idea what it is! http://en.wikipedia.org/wiki/Standard_deviation http://www.robertniles.com/stats/stdev.shtml
August 5, 2007 by Kaz

stats
x and y independent exponential r.v with respctive parameters 2 and 3. find the cdf and density of z = x/y.
November 8, 2006 by ripa

stats
find standard deviation for this problem daily precip- frequency-31,1,0,2,0,1 0.oo-0.49 0.50-0.99 1.00-1.49 1.50-1.99 2.00-2.29 2.50-2.99
May 8, 2008 by ebony

Stats
If X is a normal random variable with mean 60, and a standard deviation of 2, find: A: P (X<58) B: P(X>63) C: P(57<X<64)
March 26, 2009 by April

psy Stats.
how do you Calculate percentage when given standard deviation and mean
May 10, 2011 by Kailey

Stats
Can you tell me what ∑xy means? Like is in the sum of all x times y or what?
July 10, 2011 by Carol

Stats
Find the mean and standard deviation of the following probability distribution: x 1 2 3 P(x) 0.3 0.5 0.2
October 25, 2011 by Jen

stats
if income in the us was normally distributed, what z-score would represent the top 1%?
October 31, 2011 by stacey

stats & prob.
Given the values of n=5, p= 0.15, and (1-p)=0.85, calculate the standard deviation of the data.
November 27, 2012 by Georgia

stats
Given a standard normal variable. What is the probability that z lies between 1.48 and 2.13
April 2, 2013 by chris

stats
What does the best estimate mean after doing the liner regression equation
May 6, 2013 by Anonymous

Stats help
What does the best estimate mean after doing the liner regression equation
May 7, 2013 by Anonymous

stats
how to find the are for a standard normal curve that cuts off the upper 1.1%
November 17, 2013 by Anonymous

stats
what is the probability that a 6 digit phone number contains at least one 8?
July 19, 2014 by michelle

AP Stats
transformation necessary to linearize the data. Be sure to convince me that you understand.
August 10, 2014 by Hep

Stats
Where can I find fuel efficient car sales statistic for recent years?
October 25, 2007 by eason

college Stats
If Y has a geometric distribution with success probability p, show that P(Y= an odd integer)= p/(1-(q^2))
October 20, 2009 by james

stats help!
What 2 numbers is the emperical rule of 95% between if the P of no shows is .10 and the average party size is 10
January 13, 2011 by Lauren

stats
What are the steps to solve P(x>k)=.025 when the mean is 500, standard deviation is 100
March 13, 2011 by Lillie

stats
Find the probability that the company will meet its goal on a particular 50 miles of line
October 17, 2011 by Anonymous

Stats.
Find the standard normal area for each of the following, showing your reasoning clearly. a. P(1.22<z<2.15) b. P(2.00<z<3.00) c. P(-2.00<z<2.00) d. p(z=0.50)
April 11, 2014 by Kelly

NEED HELP PLZ!!! STATS
Three cards are selected, one at a time from a standard deck of 52 cards. Let x represent the number of tens drawn in a set of 3 cards. (A) If this experiment is completed without replacement, explain why x is not a binomial random variable. (B) If this experiment is completed...
October 23, 2011 by Jennifer

Biology and Graphing (Stats)
i need to make a graph on excel.. my data involve putting goldfish (from the same tank and same type) into 3 different environments : acidic, neutral (control), and basic. What kind of graph should I use? just a line graph? but then what should my variables look like? the 3 ...
March 24, 2010 by Carter

Stats II
I have a question on a quiz and I dont even know where to begin on figuring out the question... please help: Measurements on the percentave of enrichment of 12 fuel rods used in a nuclear reactor were reported as follows: 3.11 2.88 3.08 3.01 2.84 2.86 3.04 3.09 3.08 2.89 3.12 ...
June 5, 2007 by Haley

stats
In order to improve the English speaking and reasing skills of their students, Jack Box Elementary assigns students whose native language is Spanish to a bilingual program for 8 week. To test the effectiveness of this program, then also need a control condition, in which the ...
March 1, 2009 by ash

stats ?
In order to improve the English speaking and reasing skills of their students, Jack Box Elementary assigns students whose native language is Spanish to a bilingual program for 8 week. To test the effectiveness of this program, then also need a control condition, in which the ...
March 2, 2009 by ash

Stats
The heights of women in the US approximately follow a bell shaped curve. What do you think that means?
November 11, 2009 by Sam

STATS
A student's grade on an examination was transformed to a z value of 0.67. Therefore, we know that she scored approximately in the top
December 8, 2009 by Anonymous

Stats
Six letters are picked. Find the chance that they can be arranged to form the word RANDOM.
April 15, 2014 by Mario007

stats
what are the mean and standard error when using central limit theorem for dichotomous variable
August 28, 2014 by mary

Stats
Why is it important to know the possible errors we might make when rejecting or failing to reject the null hypothesis?
May 20, 2008 by Christine

FST (functions, stats, and trigonometry)
what is the equation for the axis of symmetry for the function f(x)=IxI?(absolute value)
October 7, 2009 by Jared

Stats
A testing service has 1000 raw scores. It wants to transform the distribution so that the mean =10 and the standard deviation = 1. To do so ?
February 18, 2010 by Z

Algebra 2: Prob and Stats
Find the sample size that produces the margin of error +-4.0% a) 325 b) 25 c) 16 d) 625
May 24, 2010 by Skye

Stats
In a distribution of scores with a mean of 234 and a standard deviation of 47, what is in the 43rd percentile ? and what formula do i use ?
February 26, 2011 by Ruben

Stats
In a distribution of scores with a mean of 234 and a standard deviation of 47, what is in the 43rd percentile ? and what formula do i use ?
February 26, 2011 by Ruben

stats
women age 20-29 is 36ml staandard deviation 7ml. What is probability greater than 45ml and between 30 and 62 ml
August 27, 2011 by anna

Stats
Five measurements are taken and are 59.5", 61.33", 60.55", 61.00", 59.8". Find the likely size of the chance error in a single measurement.
July 17, 2012 by Anonymous

STATS
The following confidence interval is obtained for a population proportion, p:0.556 < p < 0.584. What is the point estimate, p?
September 30, 2012 by 1234

stats
1. Find the sample variance and standard deviation 6, 53,11,49,35,26,28,28,31,31 s squared = (round to the nearest hundredth as needed)
October 2, 2012 by pat

stats
if x is a normally distributed random variable with amean of 8.00 if the proability for x is less than 9.54 is 0.67, then find the standard deviation of x
October 21, 2012 by tamara

Stats
Suppose X is a uniform random variable with C = 20 and d = 90. Find the probability that a randomly selected observation is between 23 and 85.
November 17, 2012 by Marie

stats
X is normally dsitributed with mean 250 and standard deviation 40. what value of X does only top 15% exceed?
March 24, 2014 by Anonymous

Psychological stats
I need help with a unique null hypothesis that I would then be able to use a t test statistical analysis,the same hypothetical situation taken in the t test hypothesis, and turn it into a null hypothesis using a one-way ANOVA analysis and a two-way ANOVA. I understand null and...
September 20, 2013 by Vanessa

Stats
1. The question asks to choose a data point in our graph (we chose 476,44) of median home prices (x) and percentage of students who scored Advanced on math MCAS (y). We have to find the residual. I'm confused because the equation I was given is e=y-yhat I know one is the ...
March 18, 2013 by Jill

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