Let ?̅ be the mean of a random sample of size 65 drawn from a population with a mean of 75 and a standard deviation 19. Find the mean of ?̅. Find the standard deviation of ?̅. Find the probability that ?̅ assumes a value between 70 and 75. Find the probability that ?̅ assumes a value less than 80.
Let ?̅ be the mean of a random sample of size 65 drawn from a population with a mean of 75 and a standard deviation 19. Find the mean of ?̅. Find the standard deviation of ?̅. Find the probability that ?̅ assumes a value between 70 and 75. Find the probability that ?̅ assumes a value less than 80.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 16HP
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