(Answered) Question a student takes weekly quizzes in a course and

Statistics

Question: A student takes weekly quizzes in a course and receives the following grades over 12 weeks

(a) Plot the data in a scatter plot with X = week and Y = grade.

(b) Calculate the least-squares line and plot this on the scatter plot in part (a).

(d) What are your conclusions based on the plot produced in (c)?

(e) Calculate 0.95-confidence intervals for the intercept and slope.

(f) Construct the ANOVA table to test whether or not there is a relationship between the response and the predictors. What is your conclusion?

(g) What proportion of the observed variation in the response is explained by changes in the predictor.

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