Suppose You Regress Ice Cream Sales on the Number of Children

Multiple Choice

Suppose you regress Ice Cream Sales on the number of children under age 10 and on binary dummy variables indicating the 2^nd,3^rd,and 4^th quarters of the year and you get (p-values in parentheses)


$$\begin{array} { lllll } Ice ~\widehat {Cream}~ Sales { } _ { t } =& 17.92 +& 8.63 Under 10 _ { t } + &14.61 Q 2 _ { t } + &5.32 Q _ { t } +& 1.08 Q 4 _ { t }\\&( 0.012 ) & ( 0.032 ) &( 0.037 ) & ( 0.124 ) &( 0.179 ) \\\end{array}$$
You should conclude that,holding all other independent variables constant,ice cream sales are statistically greater in

A) Q1 than in Q4.
B) Q1 than in Q3.
C) Q2 than in Q1.
D) Q1 than in Q2.