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Statistics
A population has a mean of 30 and a standard deviation of 5. a. If 5 points were added to every score in the population, what would be the new values for the mean and standard deviation? b. If every score in the population
asked by Nickie on January 26, 2013 
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Considered the sampling distribution of a sample mean obtained by random sampling from an infinite population. This population has a distribution that is highly skewed toward the larger values. a) How is the mean of the sampling
asked by Jennifer on February 19, 2007 
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what are the mean and standard deviation of a sampling distribution consisting of samples of size 16? these sameples were drawn from a population whose mean is 25 and who standard deviation is 5. a. 25 and 1.25 b. 5 and 5 c. 25
asked by helga on February 1, 2009 
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The mean of a sample of 25 was calculated as xbar = 500. The sample was randomly drawn from a population whose standard deviation is 15. Estimate the population mean with 99% confidence. B.) Repeat part (a) changing the population
asked by Joe on April 27, 2010 
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How do we compute sample size fluctuations? Suppose we have a population of 16000 and a sample size of 30, and the number of samples 1000, what will be the impact on population mean and standard deviation when the population is
asked by ut on December 1, 2011 
statistics
How do we compute sample size fluctuations? Suppose we have a population of 16000 and a sample size of 30, and the number of samples 1000, what will be the impact on population mean and standard deviation when the population is
asked by Nasir on December 1, 2011 
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A group of 894 women aged 7079 had their height and weight measured. The mean height was 159 cm with a standard deviation of 5 cm and the mean weight was 65.9kg with a standard deviation of 12.7kg. Both sets of data are fairly
asked by Candice on June 21, 2016 
statistics
poppulation with a mean=100,standard deviation population=10, and n=40. 1) find mean of all values in apoplution. 2) find standard deviation population 3) p(82 LESS THAN 82 less than 97 find mean)
asked by Anonymous on October 21, 2010 
Statistics
In an essay of 250500 words, thoroughly address the following items and respond to the related questions: 1.Define the term standard deviation. Why is it important to know the standard deviation for a given sample? What do
asked by Andrew on January 23, 2014 
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1. A distribution has a standard deviation of 12. Find the zscore for each of the following locations in the distribution. a. Above the mean by 3 points. b. Above the mean by 12 points. c. Below the mean by 24 points. d.
asked by Nickie on January 26, 2013