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 10% level of significance. Give answer to at least 4 decimal places. Hours 49 40 58 52 49 70 49 59 47 49 53 55 What are the correct hypotheses? H0: hours H1: hours Based on the hypotheses, find the following: Test Statistic= p-value= The correct decision is to . The correct summary would be: that the mean number of hours of all employees at start-up companies work more than the US mean of 47 hours.
The work week for adults in the US that work full time is
| Hours |
|---|
| 49 |
| 40 |
| 58 |
| 52 |
| 49 |
| 70 |
| 49 |
| 59 |
| 47 |
| 49 |
| 53 |
| 55 |
What are the correct hypotheses?
H0: hours
H1: hours
Based on the hypotheses, find the following:
Test Statistic=
p-value=
The correct decision is to .
The correct summary would be: 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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