A salesman for a new manufacturer of cellular phones claims not only that they cost the retailer less but also that the percentage of defective cellular phones found among his products, (p

1

p1),will be no higher than the percentage of defectives found in a competitor's line, (p

2

p2).To test this statement, the retailer took a random sample of 180

180 of the salesman's cellular phones and 220

220 of the competitor's cellular phones. The retailer found that 21

21 of the salesman's cellular phones and 20

20 of the competitor's cellular phones were defective. Does the retailer have enough evidence to reject the salesman's claim? Use a significance level of =0.05

=0.05 for the test.