Blog

A researcher uses an anonymous survey to investigate the study habits of American college students.  The entire group of American college students is an example of a ____.

calculate the z score if X = 75 µ = 70 and standard deviation = 2

A researcher conducts a hypothesis test using a sample from an unknown population and compares it to a known population mean.  If the t statistic has df = 35, how many individuals were in the sample?

Which is NOT an alternate hypothesis used when calculating a factorial/two-factor ANOVA?

For a population with µ = 80 and s = 6, what is the z-score corresponding to X = 68?

When comparing more than two treatment means, why should you use an analysis of variance instead of using several t tests?

Calculate the range for the scores in Group B Group A: 20, 100, 79, 88, 35, 91, 43, 12, 256Group B: 232, 78, 62, 33, 90, 21, 15, 67, 23

A repeated-measures ANOVA study produces an F-ratio with df = (2, 20). How many subjects participated in this study?

A researcher reports an independent-measures t statistic with df = 30.  If the two samples are the same size (n1 = n2), then how many individuals are in each sample?

What is the mean for the following sample of scores?Scores: 1, 4, 5, 10