Question
A psychology professor believes there is a relationship between the number of classes missed during the quarter and the final grade in for the course.
A psychology professor believes there is a relationship between the number of classes missed during the quarter and the final grade in for the course. The professor randomly samples eight students who took the course. The summary data is presented in the table below.
Number of Classes Missed (X)Final Grade (Y)
X =50X2= 498Y = 632Y2= 50560XY = 3668N=8
Conduct a hypothesis test using the following steps.Set =.01, two-tailed
Step 1:State the hypothesisin words(label and include both H0 and H1).(2 points)
Step 2:Set up the criteria for making the decision. That is, find the critical value.
(1 point)
Step 3:Summarize the data into the appropriate test-statistic. That is, compute the correlation.(3 points)
Step 4:Evaluate the Null Hypothesis (Reject or Fail to Reject?(1 point)
Step 5:State your conclusion.(1 point)
What proportion of variability in final grade is due to the number of classes missed (1 point)
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