A health and wellbeing committee claims that working an average of 35 hours per week is recommended for maintaining a good work-life balance. A random sample of 15 full-time employees were surveyed about how many hours they worked; the data are shown below. You may assume that the data come from a population that is normally distributed. Use Excel and an approproate hypothesis test to answer the following research question:

Are full-time employees working an average of 35 hours per week?

\fThere no evidence against the null hypothesis, the mean working hours could be as claimed by the committee There is evidence against the null hypothesis, the mean working hours are significantly less than those claimed by the committee There is evidence against the null hypothesis, the mean working hours are significantly more than those claimed by the committee