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A CNN/Time poll conducted in the United States October 23-24, 2002, asked, "Do you favor or oppose the legalization of marijuana?" In the nationwide poll of n = 1007 adults, 34% said that they favored legalization. The margin of error was given as 3.1% (Source: https://www.pollingreport.com).
a. Find a 95% confidence interval estimate of the percentage of American adults who favored the legalization of marijuana at the time of the poll.
b. Write a sentence that interprets the interval computed in part (a).
In a 25-2 fractional factorial experiment, using CDE and AB as the generators, find the treatment combinations. Find the aliases of the contrasts.
You catch 12 brown trout. Afish psychologist determines the I.Q.s as follows: 5; 4; 7; 3; 6;4; 5; 3; 6; 3; 8; 5. Conduct a hypothesis test of your belief. Usea significafcant level of 5%.
Let G(y) be another strictly monotone, continuous cumulative distribution function. Show that the cumulative distribution function of the random variable G-1[F(y)] is G(y).
In a recent study of incomes in Allegheny county in Pennsylvania it was found that distribution of family incomes is skew to the right. what can we say about the relationship between mean and median?
Define "Type I error" in your own words. When should we use the t distribution? How do we find the degrees of freedom when using the t-distribution to estimate or test the mean of a sample from a single population..
You randomly select six women and ask each if she considers herself a fan of professional baseball. Construct a binomial distribution using n=6 and p=0.39.
What is the probability that a student will complete the exam in more than 60 minutes but less than 75 minutes?
How many intervals cross a horizontal line μ = 279.5 mg/100 rnL? About how many would you expect to cross a line μ = 279.5 mg/100mL?
in a study of 1000 two parent families a researcher found the mean height of the husbands was 68 inches with a standard
Distinct random variable
Calculate the incidence rate of hypertension in the cohort with and without an actuarial adjustment. Did the actuarial adjustment make a difference? Explain your answer.
assume we want to use a .05 significance level to test the claim that p1ltp2. it we want to test that claim by using a
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