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What is the test statistic used for a test of two equal variances?An F-test (Snedecor and Cochran, 1983) is used to test if the variances of two populations are equal. This test can be a two-tailed test or a one-tailed test. The two-tailed version tests against the alternative that the variances are not equal.
What does a 2 sample tThe two-sample t-test (Snedecor and Cochran, 1989) is used to determine if two population means are equal. A common application is to test if a new process or treatment is superior to a current process or treatment. There are several variations on this test. The data may either be paired or not paired.
Which of the following tests compares the mean of a sample to a known population mean?The One Sample t Test is commonly used to test the following: Statistical difference between a mean and a known or hypothesized value of the mean in the population.
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Which one of the following is an assumption made when using a two sample test of means with equal population standard deviations?
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