A public bus company official claims that the mean waiting time for Bus # 14 during peak hours is approximately 10 minutes. Karen took Bus # 14 during peak hours on 36 different occasions. Her mean waiting time was 8.7 minutes. Assume that the population standard deviation o of 2.9 minutes is known. At the 0.01 significance level, test if the mean of all the peak hours waiting time for Bus # 14 is significantly different from 10 minutes. Part I. Which of the following is the appropriate set of null and alternative hypotheses? [Select] A. Ho = 8.7 vs Ha: 8.7 8.7 C. Ho X = 10 vs Ha: X 10 D. Ho = 10 vs Ha: 10 Part II. What is the computed value of the test statistic? [Select] B. Ho : : X = 8.7 vs Ha: X

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A public bus company official claims that the mean waiting time for Bus # 14 during peak hours is
approximately 10 minutes. Karen took Bus # 14 during peak hours on 36 different occasions. Her
mean waiting time was 8.7 minutes. Assume that the population standard deviation o of 2.9
minutes is known. At the 0.01 significance level, test if the mean of all the peak hours waiting
time for Bus # 14 is significantly different from 10 minutes.
Part I. Which of the following is the appropriate set of null and alternative hypotheses?
[Select]
A. Ho:
8.7 vs Ha: 8.7
B. Ho X 8.7 vs H₂ X 8.7
:
C. Ho
X = 10 vs Ha: X 10
D. Ho = 10 vs Ha :
10
Part II. What is the computed value of the test statistic? [Select]
>
Transcribed Image Text:A public bus company official claims that the mean waiting time for Bus # 14 during peak hours is approximately 10 minutes. Karen took Bus # 14 during peak hours on 36 different occasions. Her mean waiting time was 8.7 minutes. Assume that the population standard deviation o of 2.9 minutes is known. At the 0.01 significance level, test if the mean of all the peak hours waiting time for Bus # 14 is significantly different from 10 minutes. Part I. Which of the following is the appropriate set of null and alternative hypotheses? [Select] A. Ho: 8.7 vs Ha: 8.7 B. Ho X 8.7 vs H₂ X 8.7 : C. Ho X = 10 vs Ha: X 10 D. Ho = 10 vs Ha : 10 Part II. What is the computed value of the test statistic? [Select] >
Part II. What is the computed value of the test statistic✔ [ Select ]
2.6897
2.9867
-2.6789
-2.6897
WA TI
onclus
Transcribed Image Text:Part II. What is the computed value of the test statistic✔ [ Select ] 2.6897 2.9867 -2.6789 -2.6897 WA TI onclus
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