Q.1 A multiple regression model involves 10 independent variables and 30 observations. If we want to test at the 5% significance level whether one of the coefficients is = 0 (vs. 0) the critical value will be:

2.228

2.093

1.729

1.697

Q.2

Which of the following is not a required condition for one-way ANOVA?

The sample sizes must be equal.

The populations must all be normally distributed.

The population variances must be equal.

The samples for each treatment must be selected randomly and independently.