For each of the following scenarios, identify the inference test that should be used to answer the question described.

Creative Good, a New York consulting firm, claimed that 39% of shoppers fail in their attempts to purchase merchandise online because Web sites are too complex (Forbes, Dec. 13, 1999). Another consulting firm asked a random sample of 60 online shoppers to each test a different randomly selected e-commerce Web site. Only 15 reported sufficient frustration with their sites to deter making a purchase. Do these data provide sufficient evidence to reject the claim made by Creative Good?

A) Two sample paired t-test
B) Two sample z-test for the difference between two population proportions
C) One sample z-test for the population proportion
D) Two independent sample t-test for the differences between two population means
E) One sample t-test for the population
F) Two sample F-test for the ratio of population variances