The work week for adults in the US that work full time is normally distributed with a mean of 47 hours. A newly hired engineer at a start-up company believes that employees at start-up companies work more on average then most working adults in the US. She asks 12 engineering friends at start-ups for the lengths in hours of their work week. Their responses are shown in the table below. Test the claim using a 5% level of significance. Give answer to at least 4 decimal places. Hours 47 44 50 53 50 65 49 52 50 50 55 50 What are the correct hypotheses? Ho: U o hours 47 H1: P o 47 o hours Based on the hypotheses, find the following: Test Statistic= 2.4111 p-value= 0.0173 The correct decision is to Select an answer The correct summary would be: Select an answer v that the mean number of hours of all employees at start-up companies work more than the US mean of 47 hours.

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The work week for adults in the US that work full time is normally distributed with a mean of 47 hours. A
newly hired engineer at a start-up company believes that employees at start-up companies work more on
average then most working adults in the US. She asks 12 engineering friends at start-ups for the lengths in
hours of their work week. Their responses are shown in the table below. Test the claim using a 5% level of
significance. Give answer to at least 4 decimal places.
Hours
47
44
50
53
50
65
49
52
50
50
55
50
What are the correct hypotheses?
Ho: U
* hours
47
H1: P
o 47
o hours
Based on the hypotheses, find the following:
Test Statistic= 2.4111
p-value= 0.0173
The correct decision is to Select an answer
The correct summary would be: Select an answer
v that the mean number of
hours of all employees at start-up companies work more than the US mean of 47 hours.
Transcribed Image Text:The work week for adults in the US that work full time is normally distributed with a mean of 47 hours. A newly hired engineer at a start-up company believes that employees at start-up companies work more on average then most working adults in the US. She asks 12 engineering friends at start-ups for the lengths in hours of their work week. Their responses are shown in the table below. Test the claim using a 5% level of significance. Give answer to at least 4 decimal places. Hours 47 44 50 53 50 65 49 52 50 50 55 50 What are the correct hypotheses? Ho: U * hours 47 H1: P o 47 o hours Based on the hypotheses, find the following: Test Statistic= 2.4111 p-value= 0.0173 The correct decision is to Select an answer The correct summary would be: Select an answer v that the mean number of hours of all employees at start-up companies work more than the US mean of 47 hours.
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