1A. In a one-way ANOVA, the null hypothesis is : a. all the population means are

Question

1A.

In a one-way ANOVA, the null hypothesis is :

                        a. all the population means are the same.

                        b. all the population variances are the same.

                        c. all the population proportions are the same.

                        d. None of the above.

1B.

1B.

The statistical distribution used for the test of independence (or the contingency table test) is the.....................distribution.

A. t

B. standardized normal

C. Chi-Square

D. F

1C.

The effect of an unpredictable, rare event will be contained in the ___________ component.

A. trend   

B. cyclical

C. irregular

D. seasonal

1D.

The statistical distribution used for testing the equality between two population variances (when the data are sampled from two respective normal populations or n1, n2 >30 ); is the ________ distribution.

A. t

B. standardized normal

C. binomial

D. F

Explanation / Answer

1. A) the population means are the same is the null hypothesis in One way ANOVA

2. C) Chi-sqaured test is utlized

3. D) Seasonal is the event of unpredictable

4. A) t-distribution

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