Chapter 10.5, Problem 22AYU

(a)

Section 1

To determine

To test: Whether the population average is dissimilar from the provided ${\mu }_0$ or not at 5% significance level.

Section 2

To determine

To test: Whether the population average is dissimilar from provided ${\mu }_0$ or not at 5% significance level.

Section 3

To determine

To test: Whether the population average is dissimilar from provided ${\mu }_0$ or not at 5% significance level.

Section 4

To determine

To test: Whether the population average is dissimilar from provided ${\mu }_0$ or not at 5% significance level.

Section 5

To determine

To test: Whether the population average is dissimilar from provided ${\mu }_0$ or not at 5% significance level.

Section 6

To determine

To test: Whether the population average is dissimilar from provided ${\mu }_0$ or not at 5% significance level.

Section 7

To determine

To test: Whether the population average is dissimilar from provided ${\mu }_0$ or not at 5% significance level.

Section 8

To determine

To test: Whether the population average is dissimilar from provided ${\mu }_0$ or not at 5% significance level.

Section 9

To determine

To test: Whether the population average is dissimilar from provided ${\mu }_0$ or not at 5% significance level.

Section 10

To determine

To test: Whether the population average is dissimilar from provided ${\mu }_0$ or not at 5% significance level.

(b)

To determine

To construct: The 95% confidence interval for average IQ.

To determine

To conclude: The 95% confidence interval for average IQ relation with the result of part (a).

(c)

To determine

To conclude: The effect of change of significance level from 5% to 1%.