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A (n) _____is an inferential statistical font for comparing the means of three o

ID: 3173763 • Letter: A

Question

A (n) _____is an inferential statistical font for comparing the means of three or more groups. When we divide an SS score by its degrees of freedom, we have calculated_____ The sum of squared deviations of each score from the grand mean is the _____ One reason to use an ANOVA over a t test is to reduce the risk of _____[choose from these options: Type II error, Type I error, confounds, error variance). For a one way ANOVA, if k = 4 and n_1 = n_2 = n_3 = n_4 = 20, then If the null hypothesis for an ANOVA is false, then the F ratio should be_____ (choose from these options: greater than 1.00, a negative number, 0.00, 1.001. If the between groups variance is large, then we have observed_____(choose from the following: experimenter effects, large systematic variance, large error variance, possibly both b and c).

Explanation / Answer

1:

When we need to compare more than 2 population means ANOVA will be used.

Answer: ANOVA

2:

When SS is divided by df then corresponding variance is calculated.

Answer: variance

5;

df(between) = k-1=3

df(within) = 20*4 - k = 80- 4 = 76