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A researcher obtains t(20) = 2.00 and MD = 9 for a repeated-measures study.  If the researcher measures effect size using the percentage of variance accounted for, what value will be obtained for r2?

An analysis of variance produces SSbetween = 40 and MSbetween = 20.  In this analysis, how many treatment conditions are being compared?

If all other factors were held constant, how does a larger sample size affect the standard error and the t-statistic?

A two-factor experiment with 6 levels of factor A and 8 levels of factor B would consist of ____ separate treatment conditions and the dfFactor B would be ____.

The normal distribution is an example of ____.

In general, what is the effect of an increase in the variance for the sample of difference scores?

A researcher records the number of traffic tickets issued in each county along the New York State thruway. If the results are presented in a frequency distribution graph, what kind of graph should be used?

The normal distribution is an example of ____.

A few years ago, as an advertising campaign, the Nabisco Company announced a “1000 Chips Challenge,” claiming that every 18-ounce bag of their Chips Ahoy! cookies contained an average of 1000 chocolate chips. Dedicated statistics students at UW-Madison randomly selected bags of cookies and counted the chocolate chips. According to the analysis below, which statement is correct or accurate:

A sample is selected from a population and a treatment is administered to the sample. If there is a 2-point difference between the sample mean and the original population mean, which set of sample characteristics has the greatest likelihood of rejecting the null hypothesis?