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1) A population has a mean of 100 and a standard deviation of 25. A sample size of 100 will be taken and the sample
1) A population has a mean of 100 and a standard deviation of 25. A sample size of 100 will be taken and the sample mean x bar will be used to estimate the population mean. Assume that the population is infinite. What is the expected value of the x bar? A) 104.9 B) 95.1 C) 102.6 D) 100 E) none of the above 2) A population has a mean of 100 and a standard deviation of 25. A sample size of 100 will be taken and the sample mean will be used to estimate the population mean. Assume that the population is infinite. What is the standard deviation of x bar? A) 2.5 B) 25 C) 10 D) 4.9 E) 490
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Statistical Reasoning for Everyday Life
Authors: Jeff Bennett, Bill Briggs, Mario F. Triola
4th edition
978-0321817747, 321817745, 978-0321890139, 321890132, 321817621, 978-0321817624
