Kansas State University Finding the Statistical Values Exam Practice

• Use the SAS output and the t-test formula to test the hypothesis that the true slope is equal to 0 (?=.05). Write down your null and alternative hypothesis, your test statistics, your rejection region or p-value, your conclusion and interpret your result.
• Construct a 99% confidence interval for the true slope. Interpret your result. When using SAS, you can use something like
• Use SAS to calculate and draw 95% confidence bands and prediction bands. When X=45, use the SAS output to get the estimation of the mean value of Y2, construct the 95% confidence interval for the mean of Y2 and the 95% prediction interval for a new individual with X=45. Interpret your intervals.

model sbp=quet/clb alpha=.01;(in proc reg)

ormodel sbp=quet/clparm alpha=.01;(in proc glm)

to get a 99% confidence level.