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jght bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 769 hours. A random sample of 23 light bulbs has a mean life of 751 urs. Assume the population is normally distributed and the population standard deviation is 61 hours. At a=0.05, do you have enough evidence to reject the anufacturer's claim? Complete parts (a) through (e). ..... Identify the null hypothesis and alternative hypothesis. A. Ho μ2769 (claim) H: p<769 O B. Ho: µ>769 Ha: us769 (claim) O C. H: μs 751 H: µ> 751 (claim) D. Ho: p= 751 Ο Ε. Η μ< 751 (claim) OF. Ho: µ#769(claim) H3: µ 751 (claim) Ha: µ2751 Ha: u= 769 Identify the critical value(s). Use technology. se a comma to separate answers as needed. Round to two decimal places as needed.) entify the rejection region(s). Choose the correct answer below. O A. OB. OC. Fail to reject H. Fail to reject H,- Fail to reject H Next

jght bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 769 hours. A random sample of 23 light bulbs has a mean life of 751 urs. Assume the population is normally distributed and the population standard deviation is 61 hours. At a=0.05, do you have enough evidence to reject the anufacturer's claim? Complete parts (a) through (e). ..... Identify the null hypothesis and alternative hypothesis. A. Ho μ2769 (claim) H: p<769 O B. Ho: µ>769 Ha: us769 (claim) O C. H: μs 751 H: µ> 751 (claim) D. Ho: p= 751 Ο Ε. Η μ< 751 (claim) OF. Ho: µ#769(claim) H3: µ 751 (claim) Ha: µ2751 Ha: u= 769 Identify the critical value(s). Use technology. se a comma to separate answers as needed. Round to two decimal places as needed.) entify the rejection region(s). Choose the correct answer below. O A. OB. OC. Fail to reject H. Fail to reject H,- Fail to reject H Next

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 769 hours. A random sample of 23 light bulbs has a mean life of 751 nours. Assume the population is normally distributed and the population standard deviation is 61 hours. At a=0.05, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e). ..... a) Identify the null hypothesis and alternative hypothesis. OA. Ho: p2 769 (claim) O B. Ho: µ>769 O C . H : μ< 751 H3: p< 769 Ha: us769 (claim) Ha: u> 751 (claim) D D. Ho: µ= 751 O E. Ho: <751 (claim) O F. Ho: µ#769(claim) H3: u#751 (claim) Ha: µ2751 Ha: p= 769 b) Identify the critical value(s). Use technology. se Use a comma to separate answers as needed. Round to two decimal places as needed.) SE dentify the rejection region(s). Choose the correct answer below. O A. OB. Fail to reject Ho Fail to reject H- Fail to reject Ho Next 11:59pm a W 75°F O 4)
Transcribed Image Text:A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 769 hours. A random sample of 23 light bulbs has a mean life of 751 nours. Assume the population is normally distributed and the population standard deviation is 61 hours. At a=0.05, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e). ..... a) Identify the null hypothesis and alternative hypothesis. OA. Ho: p2 769 (claim) O B. Ho: µ>769 O C . H : μ< 751 H3: p< 769 Ha: us769 (claim) Ha: u> 751 (claim) D D. Ho: µ= 751 O E. Ho: <751 (claim) O F. Ho: µ#769(claim) H3: u#751 (claim) Ha: µ2751 Ha: p= 769 b) Identify the critical value(s). Use technology. se Use a comma to separate answers as needed. Round to two decimal places as needed.) SE dentify the rejection region(s). Choose the correct answer below. O A. OB. Fail to reject Ho Fail to reject H- Fail to reject Ho Next 11:59pm a W 75°F O 4)
A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 769 hours. A random sample of 23 light bulbs has a mean life of 751 hours. Assume the population is normally distributed and the population standard deviation is 61 hours. At a= 0.05, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e). see so A. O B. OC. Fail to reject Ho- Fail to reject Ho- Fail to reject Ho- see so Reject Ho- Reject H,. Reject Hg- Reject Ho- see scc -4 (c) Identify the standardized test statistic. Use technology. see sco (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim. O A. Fail to reject Ho. There is not sufficient evidence to reject the claim that O B. Fail to reject Ho. There is sufficient evidence to reject the claim that mean bulb life is at least 769 hours. mean bulb life is at least 769 hours. O C. Reject Ho. There is sufficient evidence to reject the claim that mean O D. Reject Ho. There is not sufficient evidence to reject the claim that mean Next 11:59pm 3:57 arch 75°F 11/9/2 近
Transcribed Image Text:A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 769 hours. A random sample of 23 light bulbs has a mean life of 751 hours. Assume the population is normally distributed and the population standard deviation is 61 hours. At a= 0.05, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e). see so A. O B. OC. Fail to reject Ho- Fail to reject Ho- Fail to reject Ho- see so Reject Ho- Reject H,. Reject Hg- Reject Ho- see scc -4 (c) Identify the standardized test statistic. Use technology. see sco (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim. O A. Fail to reject Ho. There is not sufficient evidence to reject the claim that O B. Fail to reject Ho. There is sufficient evidence to reject the claim that mean bulb life is at least 769 hours. mean bulb life is at least 769 hours. O C. Reject Ho. There is sufficient evidence to reject the claim that mean O D. Reject Ho. There is not sufficient evidence to reject the claim that mean Next 11:59pm 3:57 arch 75°F 11/9/2 近
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