1.For =n39 and =X25, find the exact proportions p and q.

p=? q=?

2.If =p0.70 and =n340, find X.

X=?

3.In a sample of 49 men, 31 said that they had less leisure time today than they had 10 years ago. In a sample of 49 women, 37 women said that they had less leisure time today than they had 10 years ago. At =0.05, is there a difference in the proportions?

Use p1 for the proportion of men with less leisure time.

Find the critical value(s). Round the answer(s) to two decimal places. If there is more than one critical value, separate them with commas.

Critical value(s):? & T- value =?

4.Animal Bites of Postal Workers In Cleveland, a sample of 71 mail carriers showed that 12 had been bitten by an animal during one week. In Philadelphia, in a sample of 58 mail carriers, 17 had received animal bites. Is there a significant difference in the proportions? Use =0.10 and use p1 for the proportion of mail carriers in Cleveland. Find the 90% confidence interval for the difference of the two proportions and round all intermediate calculations to at least three decimal places.

(b)Find the critical value(s). Round the answer(s) to two decimal places. If there is more than one critical value, separate them with commas.

Critical value(s): ? & T-value= ?

5.Seat Belt Use In a random sample of 183 men, 89 said they used seat belts. In a random sample of 296 women, 78 said they used seat belts. Test the claim that men are more safety conscious than women, at =0.10. Use the P-value method and use p1 for the proportion of men who use seat belts and round all intermediate calculations to at least three decimal places.

(b)Compute the test value. Round the intermediate calculations to three decimal places and final answer to at least two decimal places.

z=? & T-value=?