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Question: Public Policy and Political Science California law requires fuel outlets to install special catch basins designed to contain gasoline leaks in underground storage tanks. Owners who do not comply can face stiff fines and other penalties. Independent random samples of gasoline stations around Los Angeles and around San Francisco were obtained, and each station was inspected for catch basins. Sixteen of 140 stations near Los Angeles had no catch basins, and 12 of 126 in San Francisco were not complying with the law.
a. Find the sample proportion of stations without catch basins near each city. Verify the nonskewness criterion.
b. Is there any evidence that the population proportion of stations in noncompliance with the law is different near Los Angeles and near San Francisco? Use a = 0.01.
suppose the probability of a customer purchasing 0 1 0r 2 books at a bookstore are 0.3 0.2 and 0.5 respectively. what
Please note the following definitions: The prevalence of a disease is the proportion of individuals in a population or subpopulation who have a disease.
What is the expected time to make a decision? What is your estimate of the standard deviation of the time to make a decision?
Using the .01 level, what should the researcher conclude? Solve this problem explicitly using all five steps of hypothesis testing, and illustrate your answer with a sketch showing the comparison distribution.
What is the Covenant between YHWH and the people of Israel? What does YHWH promise anddemand in return?
The standard deviation was $21,330. At the .01 significance level, can we conclude that there is more variation in the selling prices of the oceanfront homes?
Let p_1 be the proportion of successes in the first population and let p_2 be the proportion of successes in the second population.
The unemployment rate in a city is 14%. If 10 people from the city are sampled at random, find the probability that more than 1 of them is unemployed.
a. Find a 95% confidence interval for the proportion of parents who that that violence in today's video games is a problem. b. Convert the estimate and your confidence interval to percents. c. Discuss reasons why the estimate might be biased.
What is the probability that exactly two events will occur in any 20-minute period? Suppose you start observing the process at some point of time. What is the probability that it will be less than 10 minutes until an event occurs?
a company wants to check the consistency of electronic copies of signatures for consumer credit purchases. a sample of
in a combined study of northern pike cutthroat trout rainbow trout and lake trout it was found that 26 out of 855 fish
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