Reference no: EM132339492

Question

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: 47,48,55,51,45,60,56,57,47,45,52,52

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 either accept the null hypothesis, accept the alternative hypothesis, reject the null hypothesis or fail to reject the null hypothesis?

The correct summary would be: either there is enough evidence to support the claim, there is enough evidence to reject the claim, there is enough evidence to reject the claim or there is not enough evidence to support the claim___________ that the mean number of hours of all employees at start-up companies work more than the US mean of 47 hours.