A researcher suspects that a new disease spreads via contaminated water. She identifies a 4 square kilometer area centered around a particular water tap, and finds that of the 50 victims who live in the area, the average distance between their home and the tap is 650m.

a. Test the null hypothesis that the cases are distributed randomly around the tap, using
?=.05. Give the p value associated with this observation.
b. Assume that rather than a square, the area is a circle with diameter 2km centered on
the tap. Test the null hypothesis and give the p-value again.


A.

B. The area has diameter = 2km, therefore a radius of 1km



This is within the range defined by (-1.96, 1.96). We fail to reject the null hypothesis that

points are randomly distributed around the center, with p = .3085.

Political Science

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a. activism b. review c. confirmation d. self-restraint

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Republicans tend to get support from interest groups like _________, while ___________ tend(s) to support Democrats.?

A. ?the U.S. Chamber of Commerce; Americans for Tax Reform B. ?environmental groups; Americans for Tax Reform C. ?Americans for Tax Reform; the U.S. Chamber of Commerce D. ?labor unions; environmental groups E. ?the U.S. Chamber of Commerce; labor unions

Political Science

As a result of amendments made in 1999 by the Texas Legislature to the Municipal Annexation Act, a city must take all of the following steps in order to annex property into the city limits EXCEPT

A) develop a three-year annexation plan and not annex the target area in that three-year period. B) make and inventory of current services in the area and require negotiations and arbitration regarding services. C) provide all services currently provided in its full-purpose boundaries no later than two-and-a-half years after annexation. D) conduct at least two public hearings and not reduce service levels in the area from what they were before annexation. E) pay the property taxes on the acquired land for the first ten years after annexation.

Political Science

Governor Brown's policy of "realignment" sought to reduce the population of California's overcrowded prisons by early release of nonviolent felons

Indicate whether the statement is true or false

Political Science