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A test designed to measure mothers' attitudes toward their labor and delivery experiences was given to two randomly selected groups of new mothers. Sample 1 (attenders) had attended prenatal classes held at the local health department. Sample 2 (nonattenders) did not attend the classes. The sample sizes and means and standard deviations of the test scores were as follows: Sample 1 2 n 15 22 4.75 3.00 S 1.0 1.5 Do these data provide sufficient evidence to indicate that attenders, on the average, score higher than nonattenders? Let a =0.05. (Population variances are unknown but assumed to be equal)

A test designed to measure mothers' attitudes toward their labor and delivery experiences was given to two randomly selected groups of new mothers. Sample 1 (attenders) had attended prenatal classes held at the local health department. Sample 2 (nonattenders) did not attend the classes. The sample sizes and means and standard deviations of the test scores were as follows: Sample 1 2 n 15 22 4.75 3.00 S 1.0 1.5 Do these data provide sufficient evidence to indicate that attenders, on the average, score higher than nonattenders? Let a =0.05. (Population variances are unknown but assumed to be equal)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A test designed to measure mothers' attitudes toward their labor and delivery experiences was given to two randomly selected groups of new mothers. Sample 1 (attenders) had attended prenatal classes held at the local health department. Sample 2 (nonattenders) did not attend the classes. The sample sizes and means and standard deviations of the test scores were as follows: | Sample | n | \( \bar{x} \) | s | |--------|----|-------------|----| | 1 | 15 | 4.75 | 1.0| | 2 | 22 | 3.00 | 1.5| Do these data provide sufficient evidence to indicate that attenders, on average, score higher than nonattenders? Let \( \alpha = 0.05 \). (Population variances are unknown but assumed to be equal)
Transcribed Image Text:A test designed to measure mothers' attitudes toward their labor and delivery experiences was given to two randomly selected groups of new mothers. Sample 1 (attenders) had attended prenatal classes held at the local health department. Sample 2 (nonattenders) did not attend the classes. The sample sizes and means and standard deviations of the test scores were as follows: | Sample | n | \( \bar{x} \) | s | |--------|----|-------------|----| | 1 | 15 | 4.75 | 1.0| | 2 | 22 | 3.00 | 1.5| Do these data provide sufficient evidence to indicate that attenders, on average, score higher than nonattenders? Let \( \alpha = 0.05 \). (Population variances are unknown but assumed to be equal)
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