Question: 11.1What factor determines whether you should use a 2-test or a t-test statistic for a hypothesis test? 11.2A sample is selected from a population mean

11.1What factor determines whether you should use a 2-test or a t-test statistic for a hypothesis test?

11.2A sample is selected from a population mean of 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 =9.

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 a .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 a .05?

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