5. (21 pts) Joke is a good sbadent, but at times he docan't get enough sleep. He hypothesizes that when he gets more sleep. he does better on tests. To test his hypothesis, be tracked down how she did on a number of tests based on the number of hours of sleep she got on the night pecvious. Hours of sleep Test wore 91 75 64 Summation: Mean: a Construct a scatter diagram. b. Determine the correlation between the two variables. c. Use 5% level of significance to beat the relationship between the two variables. 4. Determine the regression line. Predict the test score given that the sleeping hours is 9 hours