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Question: School vouchers A national opinion poll found that 44% of all American adults agree that parents should be given vouchers that are good for education at any public or private school of their choice. The result was based on a small sample.
a) How large an SRS is required to obtain a margin of error of 0.03 (that is, ±3%) in a 99% confidence interval? Answer this question using the previous poll's result as the guessed value for p^.
b) Answer the question in part (a) again, but this time use the conservative guess p^ = 0.5. By how much do the two sample sizes differ?
A study of 200 commercial firms revealed the data below. What is the probability that a particular firm will have 1 million or more in income after taxes?
Among nonsmokers, what percentage were pregnant after the first cycle?- Draw a bar graph that can be used to examine the relationship between smoking and how long it took to get pregnant.
Given the following sample information, test the hypothesis that the treatment means are equal at the .05 significance level.
Which one of the following influences a person's value system? Which one of the following have been found to be relatively universal values?
a standardized third grade reading test called the we can read test has a mean of 50 with a standard deviation of 10. a
The concessions manager at the Clemson vs. USC football game must decide whether to have the vendors sell sun visors or umbrellas. There is a 30% chance of rain
selma purchased a dining room set for 2320 using a 12-month deferred payment plan with an interest rate of 21.92. she
(a) The scores that high school juniors get on the verbal part of the PSAT/NMSQT test may be looked upon as values of a random variable with the mean μ = 41. Find an upper bound to the probability that one of the students will get a score of 65 or..
Suppose the case was a crime against the person. What is the probability that it resulted in custody?- Suppose the case results in probation. What is the probability that it was a conviction for a criminal code offense (traffic)?
Find the annual premium. Find the reserve at time 2, assuming the process is at that time in (i) state 0, (ii) state 1, (iii) state 2.
can you give me an operation example of the differences between scalar multiplication and matrix
Compute the 95% confidence interval for the population proportion of registered voters who favor the slow growth initiative.
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