The weights of people in a certain population are normally distributed with a mean of 154 lb and a standard deviation of 23 lb. Determine the sampling distribution of the mean for samples of size 4. A) Approximately normal, mean = 154 lb, standard deviation = 11.5 lb B) Exactly Normal, mean = 154 lb, standard deviation = 23 lb C) Approximately normal, mean = 154 lb, standard deviation = 5.75 lb D) Exactly Normal, mean = 154 lb, standard deviation = 11.5 lb
The weights of people in a certain population are normally distributed with a mean of 154 lb and a standard deviation of 23 lb. Determine the sampling distribution of the mean for samples of size 4. A) Approximately normal, mean = 154 lb, standard deviation = 11.5 lb B) Exactly Normal, mean = 154 lb, standard deviation = 23 lb C) Approximately normal, mean = 154 lb, standard deviation = 5.75 lb D) Exactly Normal, mean = 154 lb, standard deviation = 11.5 lb
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 7PPS
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The weights of people in a certain population are
normally distributed with a mean of 154 lb and a standard deviation of 23 lb. Determine the sampling distribution of the mean for samples of size 4.
A) Approximately normal, mean = 154 lb, standard deviation = 11.5 lb
B) Exactly Normal, mean = 154 lb, standard deviation = 23 lbC) Approximately normal, mean = 154 lb, standard deviation = 5.75 lb
D) Exactly Normal, mean = 154 lb, standard deviation = 11.5 lb
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