An existing inventory for a test measuring self-esteem indicates that the scores have a standard deviation of 11. A psychologist gave the self-esteem test to a random sample of 60 individuals, and their mean score was 67. Construct a 95% confidence interval for the true mean of all test scores. Then give its lower limit and upper limit. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: Upper limit: X

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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An existing inventory for a test measuring self-esteem indicates that the scores have a standard deviation of 11. A
psychologist gave the self-esteem test to a random sample of 60 individuals, and their mean score was 67. Construct a 95%
confidence interval for the true mean of all test scores. Then give its lower limit and upper limit.
Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If
necessary, consult a list of formulas.)
Lower limit:
Upper limit:
X
S
A
Submit Assign
Transcribed Image Text:An existing inventory for a test measuring self-esteem indicates that the scores have a standard deviation of 11. A psychologist gave the self-esteem test to a random sample of 60 individuals, and their mean score was 67. Construct a 95% confidence interval for the true mean of all test scores. Then give its lower limit and upper limit. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: Upper limit: X S A Submit Assign
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