1.Conduct a t-test to see if a sample of 65 participants with a mean of 83 and a standard deviation of 5.4 is significantly different than a population mean of 80.Set = .05, 2-tail.

2.A psychobiologist hypothesizes that the diastolic blood pressure of Type 1 persons differs from the average person.In the population, the mean diastolic blood pressure is

= 80.The psychobiologist takes the blood pressure of 22 Type1 men whose ages range from 21 and 29.The sample mean diastolic pressure is= 93, with the standard deviation ofS = 18.76.Using = .05, two-tailed, conduct a t-test.

STEP 1: State your hypotheses (include both H0and H1).Set = .05, two-tailed.

STEP 2:Set up the criteria for making a decision.That is, find the critical value.

STEP 3:Summarize the data into the appropriate test-statistic.That is, compute the t statistic.

STEP 4:Evaluate the Null Hypothesis (Reject or Fail to reject?)

What is your conclusion?

Compute 95% confidence limits on .Interpret.