The random sample shown below was selected from a normal distribution. 3, 3, 10, 6, 8, 6 O Complete parts a and b. ... a. Construct a 90% confidence interval for the population mean p. (I| D (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 ( I D- (Round to two decimal places as needed.) What is the effect of the sample size on the width of the confidence interval? O A. As the sample size increases, the width increases. B. As the sample size increases, the width decreases. O C. As the sample size increases, the width stays the same.
The random sample shown below was selected from a normal distribution. 3, 3, 10, 6, 8, 6 O Complete parts a and b. ... a. Construct a 90% confidence interval for the population mean p. (I| D (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 ( I D- (Round to two decimal places as needed.) What is the effect of the sample size on the width of the confidence interval? O A. As the sample size increases, the width increases. B. As the sample size increases, the width decreases. O C. As the sample size increases, the width stays the same.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:The random sample shown below was selected from a normal distribution.
3, 3, 10, 6, 8, 6 O
Complete parts a and b.
...
a. Construct a 90% confidence interval for the population mean p.
(I| D (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 ( I D- (Round to two decimal places as needed.)
What is the effect of the sample size on the width of the confidence interval?
O A. As the sample size increases, the width increases.
B. As the sample size increases, the width decreases.
O C. As the sample size increases, the width stays the same.
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