10,4 ts a and b. ... 95% confidence interval for the population mean μ. (Round to two decimal places as needed.) at sample mean x and sample standard deviation s remain exactly the same as those you just calculated but that are based on a sample of n=25 obsem ncreasing the sample size on the width of the confidence intervals? ce interval is (4.96.7.04). (Round to two decimal places as needed.) effect of the sample size on the width of the confidence interval? sample size increases, the width decreases. sample size increases, the width increases. e sample size increases, the width stays the same.
10,4 ts a and b. ... 95% confidence interval for the population mean μ. (Round to two decimal places as needed.) at sample mean x and sample standard deviation s remain exactly the same as those you just calculated but that are based on a sample of n=25 obsem ncreasing the sample size on the width of the confidence intervals? ce interval is (4.96.7.04). (Round to two decimal places as needed.) effect of the sample size on the width of the confidence interval? sample size increases, the width decreases. sample size increases, the width increases. e sample size increases, the width stays the same.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question

Transcribed Image Text:The random sample shown below was selected from a normal distribution.
3, 7, 7, 5, 10, 4 D
Complete parts a and b.
a. Construct a 95% confidence interval for the population mean μ.
(3.34,8.66) (Round to two decimal places as needed.)
b. Assume that sample mean x and sample standard deviation s remain exactly the same as those you just calculated but that are based on a sample of n = 25 observations. Repeat part a. What is
the effect of increasing the sample size on the width of the confidence intervals?
The confidence interval is (4.96.7.04). (Round to two decimal places as needed.)
What is the effect of the sample size on the width of the confidence interval?
A. As the sample size increases, the width decreases.
OB. As the sample size increases, the width increases.
OC. As the sample size increases, the width stays the same.
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