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A auto maker is interested in information about how long transmissions last. A sample of transmissions are run constantly and the number of miles before the transmission fails is recorded. The auto maker claims that the transmissions can run constantly for over 150,000 miles before failure. The results of the sample are given below. Miles (1000s of miles) | 151.2 | 17.22 Mean Variance What is the level of significance? Ex: 0.12 Observations 44 Hypothesized Mean 150 What is the null hypothesis Ho? v Pick H< 150,000 H= 150,000 df 43 t Stat 1.889 What is the alternative hypothesis P(T<=t) one-tail t Critical one-tail P(T<=t) two-tail t Critical two-tail Confidence Level(95.0%) | 1.129 0.033 1.681 Should Ho be rejected or does H H> 150,000 1? Pick 0.066 2.017 What conclusion can be drawn from the data? Pick What is the 95% confidence interval for the mean life of a transmission? [Ex: 1.234 Does the confidence interval support the results of the hypothesis test? Pick v Why? Pick 3 2.

A auto maker is interested in information about how long transmissions last. A sample of transmissions are run constantly and the number of miles before the transmission fails is recorded. The auto maker claims that the transmissions can run constantly for over 150,000 miles before failure. The results of the sample are given below. Miles (1000s of miles) | 151.2 | 17.22 Mean Variance What is the level of significance? Ex: 0.12 Observations 44 Hypothesized Mean 150 What is the null hypothesis Ho? v Pick H< 150,000 H= 150,000 df 43 t Stat 1.889 What is the alternative hypothesis P(T<=t) one-tail t Critical one-tail P(T<=t) two-tail t Critical two-tail Confidence Level(95.0%) | 1.129 0.033 1.681 Should Ho be rejected or does H H> 150,000 1? Pick 0.066 2.017 What conclusion can be drawn from the data? Pick What is the 95% confidence interval for the mean life of a transmission? [Ex: 1.234 Does the confidence interval support the results of the hypothesis test? Pick v Why? Pick 3 2.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
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A auto maker is interested in information about how long transmissions last. A sample of transmissions are run constantly and the number of miles before the transmission fails is recorded. The auto maker claims that the transmissions can run constantly for over 150,000 miles before failure. The results of the sample are given below. Miles (1000s of miles) Мean 151.2 Variance 17.22 What is the level of significance? Ex: 0.12 Observations 44 Hypothesized Mean 150 v Pick H< 150,000 H = 150,000 What is the null hypothesis Ho? df 43 t Stat 1.889 P(T<=t) one-tail What is the alternative hypothesis 0.033 t Critical one-tail 1.681 Should Ho be rejected or does H u> 150,000 ? Pick P(T<=t) two-tail t Critical two-tail Confidence Level(95.0%)| 1.129 0.066 2.017 What conclusion can be drawn from the data? Pick What is the 95% confidence interval for the mean life of a transmission? [Ex: 1.234 Does idenc I support the results the hypothesis test? Pick v Why? Pick 2 >
Transcribed Image Text:A auto maker is interested in information about how long transmissions last. A sample of transmissions are run constantly and the number of miles before the transmission fails is recorded. The auto maker claims that the transmissions can run constantly for over 150,000 miles before failure. The results of the sample are given below. Miles (1000s of miles) Мean 151.2 Variance 17.22 What is the level of significance? Ex: 0.12 Observations 44 Hypothesized Mean 150 v Pick H< 150,000 H = 150,000 What is the null hypothesis Ho? df 43 t Stat 1.889 P(T<=t) one-tail What is the alternative hypothesis 0.033 t Critical one-tail 1.681 Should Ho be rejected or does H u> 150,000 ? Pick P(T<=t) two-tail t Critical two-tail Confidence Level(95.0%)| 1.129 0.066 2.017 What conclusion can be drawn from the data? Pick What is the 95% confidence interval for the mean life of a transmission? [Ex: 1.234 Does idenc I support the results the hypothesis test? Pick v Why? Pick 2 >
A auto maker is interested in information about how long transmissions last. A sample of transmissions are run constantly and the number of miles before the transmission fails is recorded. The auto maker claims that the transmissions can run constantly for over 150,000 miles before failure. The results of the sample are given below. Miles (1000s of miles) Mean 151.2 What is the level of significance? Ex: 0.12 Variance 17.22 Observations 44 Hypothesized Mean 150 What is the null hypothesis Ho? Pick df 43 t Stat 1.889 P(T<=t) one-tail What is the alternative hypothesis Ha? Pick 0.033 t Critical one-tail P(T<=t) two-tail t Critical two-tail Confidence Level(95.0%)| 1.129 1.681 Should Ho be rejected or does Ho fail to be rejected? Pick 0.066 2.017 What conclusion can be drawn from the data? v Pick Convincing evidence does not exist to conclude that the mean life of a transmission is over 150,000 miles. Convincing evidence exists to conclude that the mean life of a transmission is over 150,000 miles. Does the conTidence interval support the resuits of the nypotnesis test? PICK Why? Pick 2 3
Transcribed Image Text:A auto maker is interested in information about how long transmissions last. A sample of transmissions are run constantly and the number of miles before the transmission fails is recorded. The auto maker claims that the transmissions can run constantly for over 150,000 miles before failure. The results of the sample are given below. Miles (1000s of miles) Mean 151.2 What is the level of significance? Ex: 0.12 Variance 17.22 Observations 44 Hypothesized Mean 150 What is the null hypothesis Ho? Pick df 43 t Stat 1.889 P(T<=t) one-tail What is the alternative hypothesis Ha? Pick 0.033 t Critical one-tail P(T<=t) two-tail t Critical two-tail Confidence Level(95.0%)| 1.129 1.681 Should Ho be rejected or does Ho fail to be rejected? Pick 0.066 2.017 What conclusion can be drawn from the data? v Pick Convincing evidence does not exist to conclude that the mean life of a transmission is over 150,000 miles. Convincing evidence exists to conclude that the mean life of a transmission is over 150,000 miles. Does the conTidence interval support the resuits of the nypotnesis test? PICK Why? Pick 2 3
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