It seem e days that college graauates wno are employea TUII-time work more than 40-nour weeks. Data are avallable that can nelp us decide ir this is true. A survey wus recently sent to a group of...

Extracted text: It seem e days that college graauates wno are employea TUII-time work more than 40-nour weeks. Data are avallable that can nelp us decide ir this is true. A survey wus recently sent to a group of adults selected at random. There were 12 respondents who were college graduates employed full-time. The mean number of hours worked per week by these 12 respondents was 42 hours, with a standard deviation of 10 hours. Assume that the population of hours worked per week by college graduates employed full-time is normally distributed with mean u. Can we conclude that u is greater than 40 hours? Use the 0.05 level of significance. Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H,. p Ho :0 H :0 (b) Determine the type of test statistic to use. D=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) O