In 1997, a survey of 860 households showed that 136 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 Hint: Is this problem about a mean or a proportion? Would you use a Z-Test, T-Test, or 1-PropZTest? a. Which of the following is the hypothesis test to be conducted? О А. Но: р3D0.15 H1 p 0.15 В. Но: р3D0.15 H1: p>0.15 О с. Но: р#0.15 H1: p 0.15 D. Ho: p> 0.15 H1: p 0.15 ОЕ. Но р<0.15 HI p 0.15 F. Hо: р30.15 H1: p< 0.15 b. What is the test statistic? Z= (Round the final answer to two decimal places as needed.) c. What is the P-value? P-value (Round to four decimal places as needed.) d. What is the conclusion? There is not sufficient evidence to support the claim that more than 15% of households use e-mail. There is sufficient evidence to support the claim that more than 15% of households use e-mail

In 1997, a survey of 860 households showed that 136 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 Hint: Is this problem about a mean or a proportion? Would you use a Z-Test, T-Test, or 1-PropZTest? a. Which of the following is the hypothesis test to be conducted? О А. Но: р3D0.15 H1 p 0.15 В. Но: р3D0.15 H1: p>0.15 О с. Но: р#0.15 H1: p 0.15 D. Ho: p> 0.15 H1: p 0.15 ОЕ. Но р<0.15 HI p 0.15 F. Hо: р30.15 H1: p< 0.15 b. What is the test statistic? Z= (Round the final answer to two decimal places as needed.) c. What is the P-value? P-value (Round to four decimal places as needed.) d. What is the conclusion? There is not sufficient evidence to support the claim that more than 15% of households use e-mail. There is sufficient evidence to support the claim that more than 15% of households use e-mail

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 30PPS

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