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What is the value of ΣX + 1 for the following scores?  Scores 1, 0, 2, 4

How do you compute df for the chi-square test for goodness of fit?

An analysis of variance is used to evaluate the mean differences for a research study comparing four treatments with a separate sample of n = 8 in each treatment.  If the data produce an F-ratio of F = 5.50, then which of the following is the correct statistical decision?

A researcher selects a sample of 100 people to investigate the relationship between gender (male/female) and registering to vote.  The sample consists of 40 females, of whom 30 are registered voters, and 60 males, of whom 40 are registered voters.  If these data were used for a chi-square test for independence, what is the observed frequency for registered males?

For the independent-measures t statistic, what is the effect of increasing the sample variances?

A researcher reports an F_ratio with df = 2, 40 from a repeated_measures ANOVA.  How many subjects participated in this experiment?

For an analysis of variance comparing four treatments, MSbetween = 12.  What is the value of SSbetween?

Correlation __________ imply causation.

Which of the following confidence intervals also indicates a significant difference between treatments with alpha = .05?

A jar contains 10 red marbles and 30 blue marbles.  A random sample of n = 3 marbles is selected from the jar.  If the first two marbles are both blue, what is the probability that the third marble will be red?