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Question: A political strategist believes that at least 58% of voters in a certain state support his candidate. He then commissions a poll of 1000 voters and 60% of them support his candidate. At ? = .05, test the claim.
Describe in some detail how a hypothesis test could be used in some real world context such as business, politics, church, Girl Scouts, school, or perhaps your place of work.
Roll a die and record the count of spots on the up face: P(1) = 0, P(2) = 1/6, P(3) = 1/3, P(4) = 1/3, P(5) = 1/6, P(6) = 0.
a medical test for malaria is subject to some error. given a person who has malaria the probability that the test will
Ssample by constructing a histogram and finding the sample mean and standard deviation, are we investigating the sampling distribution of the mean? why or why not?
Suppose that the scores of architects on a particular creativity test are normally distributed.What percentage of architects have Z scores. (a) above .10, (b) below .10
In the game of roulette, a ball is dropped into a spinning wheel, finally landing on one of the wheel's 38 different slots. The wheel has 18 black slots, 18 red slots, 1 green zero, and 1 green double-zero.
A recent report from the American Medical Association claims that for the first time in ten years, the average salary of psychiatrists was greater than $190,000 with a standard deviation of $27,000. What is the null hypothesis for his claim?
the following table shows the distribution of blood types in the general populationhoxworth blood center cincinnati
A random sample of 64 light bulbs indicates a sample mean life of 350 hours. At the 0.05 level of significance, is there evidence that the mean life is different from 375 hours?
How many ways are there of obtaining 10 patients expressing a preference for drug A. Repeat for 9 patients. 8 patients. ... 1, 0 patients. Tabulate your results.
Suppose that the insurance company developed a new payment system in an effort to increase this percentage. A sample of 200 claims processed under this system revealed.
Determine percentage of employees has 5 dependents? Of all employees which have at least one dependent, determine percentage has more than one?
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