A recent study claims that the average age of murder victims in a small city was less than 24.5 years. A sample of 25 recent victims had a mean of 21.6 years and a standard deviation of 2.5 years. At a = 0.05, is the average age of the murder victims really what the study claims? Find the confidence interval. Round to the nearest tenths.

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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A recent study claims that the average age of murder victims in a small city was less than 24.5 years. A sample of 25 recent victims had a mean of 21.6
years and a standard deviation of 2.5 years. At a = 0.05, is the average age of the murder victims really what the study claims?
Find the confidence interval. Round to the nearest tenths.
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Transcribed Image Text:A recent study claims that the average age of murder victims in a small city was less than 24.5 years. A sample of 25 recent victims had a mean of 21.6 years and a standard deviation of 2.5 years. At a = 0.05, is the average age of the murder victims really what the study claims? Find the confidence interval. Round to the nearest tenths. 4 6 7 8 9 10 11 12 13 DELL @ %23 2$ 3 6 8 e S k C Y h
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