sample mean, x $189 $145
samp stand dev, s 12 10
sample size 6 12
Use an appropriate hypothese test to provide evidence supporting that the Onkyo is more than $30 higher in price than the Jvc. set alpha = .05.
The first two parts of the question I could figure out, but this one I can't figure out what the appropriate formula/formulas to use.
A Complete, Neat and Step-by-step Solution is provided in the attached file.