The Tennessee Health Department is concerned about average baby length. We know that the national baby birth length average is 20 inches. In our 2019-2022 cohort (n=613,836), we found that the Shelby County babies were on average 19.1 inches with a variance of 1.44 inches. Use hypothesis testing to determine if this is different from the national average (use significance level of 0.05).

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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The Tennessee Health Department is concerned about average baby length. We know that the national baby birth length average is 20 inches. In our 2019-2022 cohort (n=613,836), we found that the Shelby County babies were on average 19.1 inches with a variance of 1.44 inches. Use hypothesis testing to determine if this is different from the national average (use significance level of 0.05).
 
 
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