In an ANOVA test thereare 5 observations in each of three treatments. The degree
ID: 2917225 • Letter: I
Question
In an ANOVA test thereare 5 observations in each of three treatments. The degreesof freedom in the numerator and denominator respectively are:
a. 2,4 b. 3,15 c. 3, 12 d. 2, 12
7. Which of the following assumptions is not arequirement for ANOVA?
a. dependent samples b. normal populations
c. equal population variances d. independent samples
8. Which of the following statements is not correctregarding the coefficient of correlation.
a. It can range from -1 to 1.
b. Its square is the coefficient ofdetermination.
c. It measures the percent ofvariation explained.
d. It is a measure of the associationbetween two variables.
9. The coefficient of determination
a. is usually written asr2. b. cannot be negative.
c. is the square of the coefficient ofcorrelation. d. all of the above.
10. Thecoefficient of correlation between two variables X and Y wascomputed to be -0.60. This means
a. the coefficient of determination is0.
b. as X increases Ydecreases.
c. X and Y are both0.
d. as X decreases Ydecreases.
11. A regression equation is used to
a. measure the association between twovariables.
b. estimate the value of the dependentvariable based on the independent variable.
c. estimate the value of theindependent variable based on the dependent variable.
d. estimate the coefficient ofdetermination.
Explanation / Answer
6.a. 2, 4 7.a. dependent samples 8. c. It measures the percent ofvariation explained. 9. d. all of the above. 10. b. as X increasesY decreases. 11. b. estimate the value of thedependent variable based on the independent variable.
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