Recent research indicates that undergraduate college students exercise on average 14 hours per month

Recent research indicates that undergraduate college students exercise on average 14 hours per month. A random sample of 35 students has a monthly average of 16.37 hours of exercise a month with a standard deviation of 7.22 hours. Use hypothesis testing to test whether the sample result is statistically significantly different from what the research indicates. State the null and alternative hypotheses, using appropriate notation. Assuming a 5% significance level, what are the critical values?