Week 10 Assignment Part II PS. For all problems, we assume the equality of variance between groups (homogeneity of variance assumption) Problem 1 A magazine claims that the mean amount spent by a customer at Burger Stop is greater than] the mean amount spent by a customer at Fry World. The results for samples of customer transactions for the two fast food restaurants are shown below. At a=0.05 can you support the magazine's claim? Assume the population variances areſequal. Assume the samples are random and independent, and the populations are normally distributed\ Complete parts (a) through (e) below. Burger Shop: X1 = 11.56 S, = 0.78, n = Fry World: X2 = 10.93 S2 = 0.75 n2 = 11 1) State the null hypothesis and the alternative hypothesis. 2) Which hypothesis is the claim? 3) Find the critical value. 4) Find the standardized t test. 5) Find the p-value 6) Decide whether to reject or fail to reject the null hypothesis. 7) Interpret the decision in the context of the original claim. 13 %3D %3D

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Week 10 Assignment Part II
PS. For all problems, we assume the equality of variance between groups (homogeneity of
variance assumption)
Problem 1
A magazine claims that the mean amount spent by a customer at Burger Stop is greater than|the
mean amount spent by a customer at Fry World. The results for samples of customer transactions
for the two fast food restaurants are shown below. At a=0.05 can you support the magazine's
claim? Assume the population variances areſequal. Assume thd samples are random and
independent, and the populations are normally distributed\ Complete parts (a) through (e) below.
Burger Shop: X1
Fry World: X,
1) State the null hypothesis and the alternative hypothesis.
2) Which hypothesis is the claim?
3) Find the critical value.
11.56 S, = 0.78, n1 = 13
10.93 S2 = 0.75 n2 = 11
%3D
%3D
4) Find the standardized t test.
5) Find the p-value
6) Decide whether to reject or fail to reject the null hypothesis.
7) Interpret the decision in the context of the original claim.
Transcribed Image Text:Week 10 Assignment Part II PS. For all problems, we assume the equality of variance between groups (homogeneity of variance assumption) Problem 1 A magazine claims that the mean amount spent by a customer at Burger Stop is greater than|the mean amount spent by a customer at Fry World. The results for samples of customer transactions for the two fast food restaurants are shown below. At a=0.05 can you support the magazine's claim? Assume the population variances areſequal. Assume thd samples are random and independent, and the populations are normally distributed\ Complete parts (a) through (e) below. Burger Shop: X1 Fry World: X, 1) State the null hypothesis and the alternative hypothesis. 2) Which hypothesis is the claim? 3) Find the critical value. 11.56 S, = 0.78, n1 = 13 10.93 S2 = 0.75 n2 = 11 %3D %3D 4) Find the standardized t test. 5) Find the p-value 6) Decide whether to reject or fail to reject the null hypothesis. 7) Interpret the decision in the context of the original claim.
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