The budget (in millions of dollars) and worldwide gross

September 30, 2019/in Questions Uploads /by Hannah Wangui

Question

The budget (in millions of dollars) and worldwide gross (in millions of dollars) for eight movies are shown

below.

Budget, x Gross, y
205 517
205 386
199 1804
199 752
180 715
174 239
174 230
171 414

Display the data in a scatter plot.

Calculate the correlation coefficient r.

Make a conclusion about the type of correlation.

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Find the critical F-value for a right-tailed test

September 30, 2019/in Questions Uploads /by Hannah Wangui

Question

Find the critical F-value for a right-tailed test using the indicated level of significance α and degrees of

freedom d.f.N and d.f.D.

α=0.10

d.f.N=9

d.f.D.=13

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Find the critical F-value

September 30, 2019/in Questions Uploads /by Hannah Wangui

Question

Find the critical F-value for a right-tailed test using the indicated level of significance α and degrees of

freedom d.f.N and d.f.D.

α=0.10

d.f.N=9

d.f.D.=13

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Write the claim mathematically

September 30, 2019/in Questions Uploads /by Hannah Wangui

Question

(a) Write the claim mathematically and

identify H0 and Ha. (b) Find the critical value(s) and identify the rejection region(s). (c) Find the standardized test statistic. (d) Decide whether to reject or fail to reject the null hypothesis.
In a sample of 1000 home buyers, you find that 499 home buyers found their real estate agent through a friend. At α=0.08, can you reject the claim that 45% of home buyers find their real estate agent through a friend?