Question 1082859
this is a two sample t-test with df=8 and critical value of |t|>1.860.
x bar for actresses is 31 and for actors 51.
The t-value is -2.56 and the p-value 0.045, which is significant.
t for two samples is (x1bar-x2bar)/(sqrt (s1^2/n1)+(s2^2/n2))