Question

In: Statistics and Probability

Is the crime rate in New York different from the crime rate in New Jersey? Independent...

Is the crime rate in New York different from the crime rate in New Jersey? Independent random samples from region A (cities in New York) and region B (cities in New Jersey) gave the following information about violent crime rate (number of violent crimes per 100,000 population). (Reference: U.S. Department of Justice, Federal Bureau of Investigation.)

Region A	618	521	544	545	501	405	556	539	606	536	426
Region B	523	479	378	442	500	403	497	452	394	476	511	502

Use a 10% level of significance to test the claim that there is no difference in the crime rate distributions of the two states.

Find the P-value of the sample test statistic. (Use 4 decimal places.)

The following data represent annual percentage returns on Vanguard Total Bond Index for a sequence of recent years. This fund represents nearly all publicly traded U.S. bonds. (Reference: Morningstar Mutual Fund Analysis.)

0.5

9.5

-2.2

18.6

3.2

9.6

8.7

-0.7

11.7

8.6

8.4

7.2

Test the sequence for randomness about the median. Use α = 0.05.

Find the sample test statistic R, the number of runs.

Expert Solution

orchestra answered 1 year ago

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