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StatisticsEssentials of Statistics for the Behavioral SciencesA sample of n = 4 individuals is selected from a population with a mean of μ = 40. A treatment is administered to the individuals in the sample and. after treatment, the sample has a mean of M = 44 and a variance of s 2 = 16. a. Is this sample sufficient to conclude that the treatment has a significant effect? Use a two-tailed test with α = .05. b. If all other factors are held constant and the sample size is increased to n = 16, is the sample sufficient to conclude that the treatment has a significant effect? Again, use a two-tailed test with α = .05.BuyFind*arrow_forward*

8th Edition

Frederick J Gravetter + 1 other

Publisher: Cengage Learning

ISBN: 9781133956570

Chapter 9.2, Problem 1LC

Textbook Problem

A sample of *n =* 4 individuals is selected from a population with a mean of
*M* = 44 and a variance of s^{2} = 16.

a. Is this sample sufficient to conclude that the treatment has a significant effect? Use a two-tailed test with
* =* .05.

b. If all other factors are held constant and the sample size is increased to *n* = 16, is the sample sufficient to conclude that the treatment has a significant effect? Again, use a two-tailed test with

Essentials of Statistics for the Behavioral Sciences

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Ch. 9.1 - Under what circumstances is a t statistic used...Ch. 9.1 - A sample of n = 9 scores has SS = 288. a. Compute...Ch. 9.1 - In general, a distribution of t statistics is...Ch. 9.1 - A researcher reports a t statistic with df = 20....Ch. 9.1 - For df = 15, find the value(s) of t associated...Ch. 9.2 - A sample of n = 4 individuals is selected from a...Ch. 9.3 - If all other factors are held constant, an 80%...Ch. 9.3 - If all other factors are held constant, a...Ch. 9.3 - A sample of n = 16 individuals is selected from a...Ch. 9.3 - How does sample size influence the outcome of a...

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