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A statistics professor sample mean score for an exam is 80 with a population standard deviation of 7 points from a sample of n=30. Calculate a 95% confidence interval for the population mean. O (77.38, 82.61) (77.83, 82.16) (77.49, 82.5) (77.89, 82.1)

A statistics professor sample mean score for an exam is 80 with a population standard deviation of 7 points from a sample of n=30. Calculate a 95% confidence interval for the population mean. O (77.38, 82.61) (77.83, 82.16) (77.49, 82.5) (77.89, 82.1)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Question 5 A statistics professor sample mean score for an exam is 80 with a population standard deviation of 7 points from a sample of n=30. Calculate a 95% confidence interval for the population mean. (77.38, 82.61) (77.83, 82.16) (77.49, 82.5) (77.89, 82.1)
Transcribed Image Text:Question 5 A statistics professor sample mean score for an exam is 80 with a population standard deviation of 7 points from a sample of n=30. Calculate a 95% confidence interval for the population mean. (77.38, 82.61) (77.83, 82.16) (77.49, 82.5) (77.89, 82.1)
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