A researcher is interested to know if there is a difference in levels of religiosity between different income groups. The researcher administers a religiosity scale to a total of 15 people: 5 "low income" individuals, 5 "middle income" individuals, and 5 "high income" individuals. The means for each group are as follows:

group A group B group c

low income middle inc. high inc.

N=5 N=5 N=5

Ey 37 22 42

MEAN 7.4 4.4 8.6

Ey2 285 102 381

Calculate the mean square between groups (MSbetween). Please round to one decimal place.

Calculate the mean square within groups (MSwithin) Please round to one decimal place.

Calculate the F-ratio. Please round to one decimal place.