D Question 34 3 pts Listed below is the multiple regression equation for predicting Y by X1 through X5. Y-Sales per month X-Amount spent on printed ads X- Amount spent on text messages X3 Amount spent on radio ads X-Amount spent on customer service support X-Amount spent on Internet ads There are a total of n-100 observations used in the analysis. Y-hat-12.34 +1.55 X +0.22 X2 +1.45 X3 +0.612 -15.2 Xs What is the alternative hypothesis for the Overall F test? O Ha: At least one of Beta, through Betas does not equal Zero. Ha: At least one bj does not equal Zero. O Ha: All bys are equal to Zero. O Ha: All Betas are equal to Zero. Question 28 3 pts 105 For the following, select how you would typically code dummy (or indicator) variables to include in a regression model. Dental Insurance (Yes or No) OA variable named Dental that equals Yes if the participant has Dental Insurance and No otherwise OA variable named Dental that equals A if the participant has Dental insurance and B otherwise OA variable named Dental that equals 1 if the participant has Dental insurance and 0 otherwise O Two Variables. One variable has Dental equals 1 and 0 otherwise and another variable that has No Dental equals 1 and 0 otherwise D Question 17 3 pts Which is wider, a prediction interval for the next y at a set x or a confidence interval for the average y at a set x? O prediction interval for the next y at a set x. O They have the same width for a set x. O confidence interval for the average y at a set x.