Word problem : 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 than most working adults in the US. She asks 12 engineering friends at start ups for the link and hours of their work week. Their responses are shown in the table below. Test the claim is in a 5% level of significance.

50 44 51 50 45 64 46 50 47 47 50 51 What are the correct hypotheses? Ho: Select an answer v ? hours Ha: Select an answer v ? hours Based on the hypotheses, find the following: Test Statistic= (Give answer to at least 4 decimal places.) p-value= (Give answer to at least 4 decimal places). The correct decision is to Select an answer v 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