Bookmarks Window Help bocsulb.desire2learn.com C DAL 1 Marketi... D21 2 Machin. DAL 3 Types... DAL 4 Data vi. DAL 5 AB Test.. DAL 6 Linear. Da1 7 Pric Bina Khafajizadeh: Attempt 1 Question 11 (3 points) E ) Listen Which one is correct about the coefficient of Endcap? a. If sales increase by $6.4, promotion increases by one unit. Ob. If a product is on promotion, sales increase by $6.4. c. The coefficient is not statistically significant at 5% level. d. If promotion increases by 6.4, sales increases by $1. Question 12 (3 points) = ) Listen Which one is correct about the question, "Is newspaper ad effective in raising sales? a. No, because newspaper ad does not affect sales. b. Yes, because the coefficient of newspaper ad is positive. c. Yes, because newspaper ad has a stronger effect on sales than radio ad. d. No, because newspaper ad has a weaker effect on sales than constant. 15 at tv A MacBook Air