Pearson eText for Statistics for Psychology -- Instant Access (Pearson+)
6th Edition
ISBN: 9780137477968
Author: Arthur Aron, Elliot Coups
Publisher: PEARSON+
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Chapter W4, Problem 5PP
a.
To determine
i. Find the value of a t test for independent means.
ii. Find the
iii. Find the t for significance of the correlation coefficient and note explicitly the similarity of results.
iv. Construct a
v. Give the explanation of the relation of the spread of the means, and the spread of the scores around the means, to the t test result.
b.
To determine
i. Find the value of a t test for independent means.
ii. Find the
iii. Find the t for significance of the correlation coefficient and note explicitly the similarity of results.
iv. Construct a scatter diagram.
v. Give the explanation of the relation of the spread of the means, and the spread of the scores around the means, to the t test result.
c.
To determine
i. Find the value of a t test for independent means.
ii. Find the correlation coefficient.
iii. Find the t for significance of the correlation coefficient and note explicitly the similarity of results.
iv. Construct a scatter diagram.
v. Give the explanation of the relation of the spread of the means, and the spread of the scores around the means, to the t test result.
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In a town with 5000 adults, a sample of 50 is selected using SRSWOR and asked their opinion of a proposed municipal project; 30 are found to favor it and 20 oppose it. If, in fact, the adults of the town were equally divided on the proposal, what would be the probability of observing what has been observed? Approximate using the Binomial distribution. Compare this with the exact probability which is 0.0418.
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Chapter W4 Solutions
Pearson eText for Statistics for Psychology -- Instant Access (Pearson+)
Ch. W4 - Prob. 1.1HDCh. W4 - Prob. 1.2HDCh. W4 - Prob. 1.3HDCh. W4 - Prob. 1.4HDCh. W4 - Prob. 1.5HDCh. W4 - Prob. 1.6HDCh. W4 - Prob. 1.7HDCh. W4 - Prob. 2.1HDCh. W4 - Prob. 2.2HDCh. W4 - Prob. 2.3HD
Ch. W4 - Prob. 2.4HDCh. W4 - Prob. 2.5HDCh. W4 - Prob. 2.6HDCh. W4 - Prob. 3.1HDCh. W4 - Prob. 3.2HDCh. W4 - Prob. 3.3HDCh. W4 - Prob. 3.4HDCh. W4 - Prob. 1PPCh. W4 - Prob. 2PPCh. W4 - Prob. 3PPCh. W4 - Prob. 4PPCh. W4 - Do the following for the scores in practice...Ch. W4 - Prob. 6PPCh. W4 - Prob. 7PPCh. W4 - Prob. 8PPCh. W4 - Prob. 10PPCh. W4 - Prob. 11PPCh. W4 - Prob. 12PPCh. W4 - Prob. 13PPCh. W4 - Prob. 14PPCh. W4 - Prob. 15PPCh. W4 - Prob. 16PPCh. W4 - Prob. 17PPCh. W4 - Prob. 18PPCh. W4 - Prob. 20PP
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