Regression

13- The data of a study on the number of weeks of cha-cha-cha practice and the number of times per minute that our partner steps on our feet are illustrated in the following table Participant No. weeks of No. times our partner practice steps on our toes P1 2 P2 P3 P4 P35 WOOOw PG P7 PG P9 From these, the scatter diagram is generated. 10 Nb d We also extracted the following descriptive statistics: The mean and the standard deviation for the variable number of weeks of practice are respectively 2.78 and 1.85 and the mean and the standard deviation for the variable number of times that our partner walking on the feet are respectively 4.33 and 3.2. Finally, the covariance between these two variables is -4.67. a) (4 pts) Following these observations, is it worth taking dance lessons? (we assume a significance level of 5%) b) (5 pts) Do you wonder how many times you will be stepped on after 8 weeks of class