Chapter 13 Quiz

In a completely randomized experimental design involving five treatment, 13 observations were recorded for each of the five treatments (a total of 65 observations). Also, the design provided the following information. SSTR = 200 (Sum of Squares Due to Treatments) SST = 800 (Total Sum of Squares) The mean square due to error (MSE) is

10

In order to test for the significance of a regression model involving 14 independent variables and 255 observations, the numerator and denominator degrees of freedom (respectively) for the critical value of F are

14 and 240

An ANOVA procedure is used for data that was obtained from four populations. Four samples, each comprised of 30 observations, were taken from the four populations. The numerator and denominator (respectively) degrees of freedom for the critical value of F are

3 and 116

The critical F value with 8 numerator and 29 denominator degrees of freedom at alpha = 0.1 is

3.20

The independent variable of interest in an ANOVA procedure is called a

factor

The critical F value with 6 numerator and 60 denominator degrees of freedom at alpha = .05 is

2.25

Consider the following information. SSTR = 6750 SSE = 8000 The mean square due to treatments (MSTR) equals

2250

Consider the following information. SSTR = 6750 SSE = 8000 The test statistic to test the null hypothesis equals

4.50

An ANOVA procedure is applied to data obtained from 6 samples where each sample contains 20 observations. The degrees of freedom for the critical value of F are

5 numerator and 114 denominator degrees of freedom

Consider the following information. SSTR = 6750 SSE = 8000 If n = 5, the mean square due to error (MSE) equals

500

In a completely randomized experimental design involving five treatment, 13 observations were recorded for each of the five treatments (a total of 65 observations). Also, the design provided the following information. SSTR = 200 (Sum of Squares Due to Treatments) SST = 800 (Total Sum of Squares) The sun of squares due to error (SSE) is

600

In the ANOVA, treatment refer to

Different levels of a factor

In order to determine whether or not the means of 2 populations are equal,

Either a t test or an analysis of variance can be performed

The F ratio in a completely randomized ANOVA is given by

MSTR/MSE