In 1997: a survey of 880 households showed that 160 of them use e-mail. Use those sample results to test the claim that more than 15% of households use e-mail. Use a 0.05 significance level. Use this information to answer the following questions. a. Which of the following is the hypothesis test to be conducted?

b. What is the test statistic?

(Round to two decimal places as needed.)

c. What is the P-value?

P-value = (Round to three decimal places as needed.)

d. What is the conclusion? 0 There is not sufficient evidence to support the claim that more than 15% of households use e-mail. 0 There is sufficient evidence to support the claim that more than 15% of households use e-mail.

e. Is the conclusion valid today? Why or why not?

A. Yes, the conclusion is valid today because the requirements to perform the test are satisfied.

B. No, the conclusion is not valid today because the population characteristics of the use of e-mail are changing rapidly.

C. You can make no decisions about the validity of the conclusion today.

Transcribed Image Text:

OA. Ho: p = 0.15 H₁: p <0.15 Oc. Ho: p <0.15 H₁: p = 0.15 OE. Ho: p=0.15 H₁: p = 0.15 B. Ho: p=0.15 H₁: p>0.15 OD. Ho:p> 0.15 H₁: p=0.15 OF. Ho: p *0.15 H₁: p = 0.15 OA. Ho: p = 0.15 H₁: p <0.15 Oc. Ho: p <0.15 H₁: p = 0.15 OE. Ho: p=0.15 H₁: p = 0.15 B. Ho: p=0.15 H₁: p>0.15 OD. Ho:p> 0.15 H₁: p=0.15 OF. Ho: p *0.15 H₁: p = 0.15

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a Null hyp P015 Alternative hyp P015 right tail b Te... View the full answer