Determine the following:

1. In order to get valid results, the hypothesis test for a variance for a single population requires that the population from which the sample is drawn to be normally distributed. T or F?
2. The degrees of freedom for the critical value for a hypothesis test for a single population variance is n-2, where n is the sample size. T or F?
3. The ________ provides an estimate for the population variance whether or not the null hypothesis is true for one-way ANOVA. a) total sum of squares b) mean square between c) sum of squares error d) mean square within
4. In order to get valid results, the hypothesis test for a variance for a single population requires that the population from which the sample is drawn to be normally distributed. T or F?
5. A wider the margin of error will result in a more precise confidence interval. T or F?