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Public Policy and Political Science
Suppose Colby Coash, a state senator from Lancaster County, Nebraska, is considering a run for governor. He will enter the campaign if there is evidence to suggest that more than 65% of all state residents favor his candidacy. A random sample of likely voters is obtained, and the resulting survey data will be used to test the relevant hypothesis. Let p be the proportion of all voters who favor his candidacy. State the null and alternative hypotheses in terms of p.
Define a critical region that has a significance level of a = 0.05. If the random sample of n = 30 yielded = 3189 and s = 488, what is your conclusion? What is the approximate p-value of your test?
(a) Find the mean, variance, and range for these data and interpret. (b) Find lower and upper quartiles, median, and interquartile range. Check for any outliers. (c) Construct a box plot and interpret.
The mean pulse rate for males. Define the null and alternative hypothesis. SD= 18.48 pulse rate for males 25.07 women.
Quart cartons of milk should contain at least 32 ounces. A sample of 20 cartons contained the following amounts in ounces. Does sufficient evidence exist to conclude the mean amount of milk in cartons is less than 32 ounces at the 5% significance ..
a researcher wants to find out how college students feel about their social security system. which of the following
the table below summarizes baseline characteristics on patients participating in a clinical trialcharacteristicplacebo
steve and his friends are relaxing at a local tavern. the number of drinks that steves table receives is poisson
Why is it important to study ethics in statistics? Have you seen statistics misused? Without naming specific companies or people, can you provide examples?
1. what percentage of people falls between -2 and 2 standard deviations on iq scores if the general population of iq
The actual tracking weight of a stereo cartridge that is set to track at 3 g on a particular changer can be regarded as a continuous rv X with pdf
With a placebo later developed the disease. Test the claim that the vaccine is effective in lowering the incidence of the disease. Use a significance level of 0.01.
The average salary of a group of sales people is $32,500 with a standard deviation of $2,500. Answer the following: How much would a salesperson make if he/she is 2 standard deviations above the mean?
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