Chapter 12.1, Problem 1SE

a.

To determine

(a)Find the critical value of $t_{\alpha }$ using Appendix D.

(b)State the hypotheses about $\rho$.

(c)Perform t-test. Write the decision.

b.

To determine

(a)Find the critical value of $t_{\alpha }$ using Appendix D.

 (b)State the hypotheses about $\rho$.

(c)Perform t-test. Write the decision.

c.

To determine

(a)Find the critical value of $t_{\alpha }$ using Appendix D.

(b)State the hypotheses about $\rho$.

(c)Perform t-test. Write the decision.

d.

To determine

(a)Find the critical value of $t_{\alpha }$ using Appendix D.

(b)State the hypotheses about $\rho$.

(c)Perform t-test. Write the decision.