Question 1038359
Ho=no change, x=75
Ha=there is a change x NE 75
alpha=0.05 P{reject Ho|Ho true}
test statistic is a t df=35,0.975=(x-75)/s/sqrt (n)
critical value |t|>2.03
calculation: t=-5*6/12
=-30/12=-2.5
This is in the rejection region, so we reject Ho and conclude at the 5% level that there was a difference.
p-value is 0.017.
The film did significantly change the student's attitudes towards the chronically mentally ill.