Two separate samples, each with n = 15 individuals, receive different treatments. After treatment, the first sample
Question:
a. Find the pooled variance for the two samples.
b. Compute the estimated standard error for the sample mean difference.
c. If the sample mean difference is 8 points, is this enough to reject the null hypothesis and conclude that there is a significant difference for a twotailed test at the .05 level?
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a The pooled variance is 120 b The es...View the full answer
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Related Book For 
Essentials Of Statistics For The Behavioral Sciences
ISBN: 9781133956570
8th Edition
Authors: Frederick J Gravetter, Larry B. Wallnau
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