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For this exercise, use the GSS-08 dataset on the companion website. The variable cappun is the respondent's opinion about the death penalty for persons convicted of murder, and the variable polparty is the respondent's political party preference (Democrat, Republican, Independent, Other).
a. In this dataset, what percentage favors the death penalty? What percentage opposes it?
b. Create a table that displays the relationship between political party and opinion about the death penalty. Calculate an appropriate set of percentages for describing the relationship.
c. Are the variables polparty and cappun related? Explain.
a sample of 4 telephones is selected from a shipment of 20 phones. there are 5 defective telephones in the shipment.
A baseball fan would like to estimate the mean time it takes to complete a major league baseball game. He randomly selects 40 game lengths (times to complete games) for major league baseball games and finds the mean to be 178 minutes with a standard ..
(a) Suppose that we round off the time by taking the integer part. Calculate the probability that the first event from to will be a birth.
For the previous exercise, compute a 0.95 confidence interval and compare the result with your decision about whether to reject H0.
a maximization linear program has been solved and sensitivity analysis has been performed. the ranges for the right
decide whether the random variable x is discrete or continuous. x represents the total number of die rolls required for
the length of time in seconds that a user views a page on a web site before moving to anotherpage is a lognormal random
X1, X2, X3, ... Xn are n independent, identically distributed random variables with expectation of 5 and variance of 4 (E[Xi] = 5, Var (Xi) = 4) and n is large. Determine Var(Y)?
Machine X test unit cost $3000 with beta=3 and theta=500, Machine Y test unit cost $2000 with beta=3 and theta=400. If the machines oil fixtures has life of 20 hrs, which machine goes to market first?
Select a legitimate sampling strategy and collect at least 30 data points using your created question or topic. Discuss the sampling strategy in sufficient detail so that someone else could repeat your data collection without any difficulties or q..
Use the permutations rule to determine the total number of different ways the winners can be drawn.
Write the null and alternative hypotheses you would use to test the following situation.
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