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A population of N = 6 scores has ΣX = 30.  What is the population mean?

The values in the following matrix are treatment means from a two-factor study. One of the means is missing. What value for the missing mean would most likely result in main effect for factor A but not factor B?     B1 B2 A1 8 12 A2 6 ?

An independent-measures study has one sample with n = 10 and a second sample with n = 15 to compare two experimental treatments.  What is the df value for the t statistic for this study?

A study researched the average lifespan across breeds of fish. The study showed that Fish A has a longer average lifespan than Fish B. This is an example of:

A set of n = 15 pairs of X and Y scores has SSX = 10, SSY = 40, and SP = 30.  What is the slope for the regression equation for predicting Y from X?

In a frequency distribution graph, frequencies are presented on the ____ and the scores (categories) are listed on the ____.

A sample of 100 people is classified by gender (male/female) and by whether or not they are registered voters.  The sample consists of 80 females and 20 males, and has a total of 60 registered voters.  If these data were used for a chi-square test for independence, what is the expected frequency for males who are registered voters?

For a repeated-measures study comparing three treatment conditions with a sample of 4 participants, the participant totals (the P values) are 3, 6, 9, and 6.  What is the value for SSbetween subjects?

For a repeated-measures study comparing two treatments with n = 15 scores in each treatment, the data produce t = 1.78. If the mean difference is in the direction that is predicted by the researcher, then which of the following is the correct decision for a hypothesis test with α = .05?

In a frequency distribution graph, frequencies are presented on the ____ and the scores (categories) are listed on the ____.