A sample is selected from a population mean of µ = 30. A treatment is administered to the individuals in the sample and, after treatment, the sample mean found to be M = 31.3 with a sample variance of s2 = 12. a. If the sample consists of n = 16 individuals, are the data sufficient to conclude that there is a significant treatment effect using a two-tailed test with α = .05? b. If the sample consists of n = 36 individuals, are the data sufficient to conclude that there is a significant treatment effect using a two-tailed test with α = .05?

A sample is selected from a population mean of µ = 30. A treatment is administered to the individuals in the sample and, after treatment, the sample mean found to be M = 31.3 with a sample variance of s2 = 12. a. If the sample consists of n = 16 individuals, are the data sufficient to conclude that there is a significant treatment effect using a two-tailed test with α = .05? b. If the sample consists of n = 36 individuals, are the data sufficient to conclude that there is a significant treatment effect using a two-tailed test with α = .05?

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A First Course in Probability (10th Edition)

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Chapter1: Combinatorial Analysis

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A sample is selected from a population mean of µ = 30. A treatment is administered
to the individuals in the sample and, after treatment, the sample mean found to be M
= 31.3 with a sample variance of s2 = 12.
a. If the sample consists of n = 16 individuals, are the data sufficient to conclude
that there is a significant treatment effect using a two-tailed test with α = .05?
b. If the sample consists of n = 36 individuals, are the data sufficient to conclude
that there is a significant treatment effect using a two-tailed test with α = .05?

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