The results in Figure 9-10 suggest that every additional dollar
in the movie’s budget is associated with an additional $1.14
in revenue if the lead actor is male and no more than 40 years
of age. The actor’s gender doesn’t appear to have a
statistically significant effect (p-value is 0.774), but age is
significant at the 9.4 percent level of significance (the p-value
is 0.094). On average, if a lead actor is over 40 years of age,
movie revenue is $8.7 million less than those movies with a
lead actor no more than 40 years of age. The interaction
variable FemXOver40 isn’t significant (p-value is 0.206), so
movie revenue doesn’t appear to be affected by having a lead
character who is both female and over the age 40.