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 12 13 A2 8 ?

For the linear equation Y = 2X + 4, if X increases by 1 point, how much will Y increase?

In an independent-measures study with n = 10 in each treatment, the data produces M = 35 for the first treatment and M = 30 for the second treatment. If the data are evaluated with a hypothesis test and the decision is to reject the null hypothesis with α = .05, then what value cannot be inside the 95% confidence interval for the population mean difference?

Which of the following possibilities is a serious concern with a repeated-measures study?

A sample consists of n = 16 scores.  How many of the scores are used to calculate the range?

Calculate Σ(2X) for the numbers: 1, 4, 5, 6

If I have a mean of 400 (ΣX= 2,800 n=7) and add another score of 100, what would the new mean equal?

A sample of n = 4 scores has a standard error of 10 points.  For the same population, what is the standard error for a sample of n = 16 scores?

An 80% confidence interval for µ is computed from sample data and the interval estimate ranges from 69 to 71. This indicates that:

If the null hypothesis is true, what value is expected on average for the repeated-measures t statistic?