Use the following data set: 40, 33, 77, 12, 23, 56, 23, 19, 29 (minutes). Assume the data is approximately bell shaped and a sample.   a) Find n, the mean, and the standard deviation.   b) Create a 90% Confidence interval for the mean. Provide a sketch of the critical value and calculate the standard error.               c) Create a 95% Confidence interval for the mean. Provide a sketch of the critical value and calculate the standard error.               d) Create a 99% Confidence interval for the mean. Provide a sketch of the critical value and calculate the standard error. Only for this part use ?=23.8d) Create a 99% Confidence interval for the mean. Provide a sketch of the critical value and calculate the standard error. Only for this part use ?=23.8

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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Use the following data set: 40, 33, 77, 12, 23, 56, 23, 19, 29 (minutes). Assume the data is approximately bell shaped and a sample.
 
a) Find n, the mean, and the standard deviation.
 
b) Create a 90% Confidence interval for the mean. Provide a sketch of the critical value and calculate the standard error.
 
 
 
 
 
 
 
c) Create a 95% Confidence interval for the mean. Provide a sketch of the critical value and calculate the standard error.
 
 
 
 
 
 
 
d) Create a 99% Confidence interval for the mean. Provide a sketch of the critical value and calculate the standard error. Only for this part use ?=23.8d) Create a 99% Confidence interval for the mean. Provide a sketch of the critical value and calculate the standard error. Only for this part use ?=23.8
 
 
 
 
 
 
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