Recently, the number of airline companies that offer in-flight Wi-Fi service to passengers has increased. However, it is estimated that only

18%

of the passengers who have Wi-Fi available to them are willing to pay for it. Suppose the largest provider of airline Wi-Fi service, would like to test this hypothesis by randomly sampling

400

passengers and asking them if they would be willing to pay$4.95 for 90 minutes of onboard Internet access. Suppose that

67

passengers indicated they would use this service. Using

=0.10,

complete parts a and b below.

A.

Calculate the test statistic.

zp= enter your response here

(Round to two decimal places as needed.)

B.

Determine the proper conclusion. Choose the correct answer below.

A.

Do not reject

H0,

and conclude that the proportion of airline passengers willing to pay for onboard Wi-Fi service

could be

18%.

Your answer is correct.

B.

Do not reject

H0,

and conclude that the proportion of airline passengers willing to pay for onboard Wi-Fi service

is not

18%.

C.

Reject

H0,

and conclude that the proportion of airline passengers willing to pay for onboard Wi-Fi service

could be

18%.

D.

Reject

H0,

and conclude that the proportion of airline passengers willing to pay for onboard Wi-Fi service

is not

18%.

C.

Determine the p-value for this test.

p-value=0.2340.234

(Round to three decimal places as needed.)