A farmer has decided to use a new additive to grow his crops. Hedivided his farm into 10 plots and kept records of the corn yield(in bushels) before and after using the additive. The before (firstrow) and after (second row) results from the 10 different plots areshown below.
Corn Yield
Before 9 9 8 7 6 8 5 9 10 11
After 10 9 9 8 7 10 6 10 10 12
You wish to test the following hypothesis at the 1 percent levelof significance.
H0= µ=0 against H1: µd > 0
What decision rule would you use?
a.) Reject H0 if test statistic is less than 2.821
b.) Reject H0 if test statistic is greater than -2.821
c.) Reject H0 if test statistic is greater than 2.821
d.) Reject H0 if test statistic is greater than -2.821 or lessthan 2.821
