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 1% level of significance. Give answer to at least 4 decimal places. Hours 47 50 57 50 46 66 57 55 45 49 50 55 a. What are the correct hypotheses? Ho: Select an answer? hours

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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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 1% level of significance. Give answer
to at least 4 decimal places.
Hours
47
50
57
50
46
66
57
55
45
49
50
55
a. What are the correct hypotheses?
Ho: Select an answer?
H₁: Select an answer ?
Based on the hypotheses, find the following:
b. Test Statistic =
hours
hours
c. p-value =
d. The correct decision is to Select an answer
e. The correct summary would be:
Select an answer
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 1% level of significance. Give answer to at least 4 decimal places. Hours 47 50 57 50 46 66 57 55 45 49 50 55 a. What are the correct hypotheses? Ho: Select an answer? H₁: Select an answer ? Based on the hypotheses, find the following: b. Test Statistic = hours hours c. p-value = d. The correct decision is to Select an answer e. The correct summary would be: Select an answer 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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