A magazine claims that the mean amount spent by A customer at Burger barn is greater than the mean amount spent by A customer at Burger fry. The results for samples of customer transactions for the two fast food restaurants are shown below. At a=.01, can you support the magazine s claim? Assume the population variances are equal. Assume the samples are random and independent, and the populations are normally distributed. Complete c through e.

Burger barn

-x1= $11.46

s1= $.89

n1 = 12

Burger fry

-x2= $10.83

s2= $.64

n2= 10

C. Find the standardized test statistic.

D. Decide whether to reject or fail to reject the null hypothesis.

E. Interpret the decision in the context of the original claim.