The life expectancy in the united states is 75 with a standard deviation of 7 years. A random sample of 49 individuals is selected. A. What is the standard error of the mean? B. What is the probability that the sample mean will be larger than 77 years? C. What is the probability yhat the sample mean will be less than 72.7 years?
The life expectancy in the united states is 75 with a standard deviation of 7 years. A random sample of 49 individuals is selected. A. What is the standard error of the mean? B. What is the probability that the sample mean will be larger than 77 years? C. What is the probability yhat the sample mean will be less than 72.7 years?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Question
The life expectancy in the united states is 75 with a standard deviation of 7 years. A random sample of 49 individuals is selected.
A. What is the standard error of the
B. What is the probability that the sample mean will be larger than 77 years?
C. What is the probability yhat the sample mean will be less than 72.7 years?
D. What is the probability that tje sample mean will be between 73.5 and 76 years?
What is the probability that the sample mean will be between 72 and 74 years?
What is the probability that the sample mean will be larger than 73.46 years?
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