Can anybody please help me with this question? I'm totallly lost.
A researcher wanted to determine if the average size of farms in two
counties in Pennsylvania were different. He samples 8 farms in
Indiana County and determines the average size of a farm is 191 acres
with a standard deviation of 38 acres. He then samples 10 farms in
Greene County and determines the average size of a farm is 199 acres
with a standard deviation of 12 acres. A hypothesis test was
conducted at the 5% level of significance.
A. 0.22
B. 0.57
C. 1.85
D. -1.85
E. -0.57
Thanks in advance.
