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Consider the following set of salary data: Men (1) Women (2) Sample Size 100 80 Мean $12,850 $13,000 Standard Deviation $345 $500 What assumptions are necessary to perform a test for the difference in population means? A) The two samples were independently selected from the populations of men and women. B) The population variances of salaries for men and women are equal. C) Both of the target populations have approximately normal distributions. D) All of the above are necessary.

Consider the following set of salary data: Men (1) Women (2) Sample Size 100 80 Мean $12,850 $13,000 Standard Deviation $345 $500 What assumptions are necessary to perform a test for the difference in population means? A) The two samples were independently selected from the populations of men and women. B) The population variances of salaries for men and women are equal. C) Both of the target populations have approximately normal distributions. D) All of the above are necessary.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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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1) Consider the following set of salary data: Men (1) Women (2) Sample Size 100 80 Мean $12,850 $13,000 $500 Standard Deviation $345 What assumptions are necessary to perform a test for the difference in population means? A) The two samples were independently selected from the populations of men and women. B) The population variances of salaries for men and women are equal. C) Both of the target populations have approximately normal distributions. D) All of the above are necessary.
Transcribed Image Text:1) Consider the following set of salary data: Men (1) Women (2) Sample Size 100 80 Мean $12,850 $13,000 $500 Standard Deviation $345 What assumptions are necessary to perform a test for the difference in population means? A) The two samples were independently selected from the populations of men and women. B) The population variances of salaries for men and women are equal. C) Both of the target populations have approximately normal distributions. D) All of the above are necessary.
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