1. NSCC is investigating whether their classes cause an increase in stress level in students which can be identified by an increased standing pulse rate. Test, using a significance level of alpha=0.05 whether the population of NSCC students have a higher pulse rate than the national average of 72 bpm for adults.

A. State the claim and the null and alternate hypotheses. Is the test left, right,or two-tailed?

B. Find the sample mean, sample Standard Deviation, and sample size of the pulse rate variable. Denote with the proper symbols.

C. Find the p-value of the getting the sample data by chance.

D. Decision: reject H0 or fail to reject H0 ?

E. Conclude the result of the test in context of the situation and in a statement that is understandable to a non-statistician.

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