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Survey questions
Examine each of the following questions for possible bias. If you think the question is biased, indicate how and propose a better question.
a) Should companies that pollute the environment be compelled to pay the costs of cleanup?
b) Given that 18-year-olds are old enough to vote and to serve in the military, is it fair to set the drinking age at 21?
the number of telephone calls coming into a businesss switchboard averages 4 calls per minute. let x be the number of
a) Find a 98% confidence interval for the proportion of children in England who are deficient in vitamin D. b) Explain carefully what your interval means. c) Explain what "98% confidence" means.
Supposing that both tests measure the same kind of ability, who has the higher score? If grading were done on a curve, what would their respective percentages be?
Use the ustudy.sav file. This time, consider that you collected data only on ACADRNK, YRSPHD, SALARY, and PUBLCTN from the 20 faculty. The purpose of your analysis is to group this faculty into separate clusters based on the data you have.
If 16 measurements are taken and the standard deviation is 2.1 mg/dl is there enough evidence to support the claim that her standard deviation is greatear than the target at a = 0.01?
If the proposed textbook receives a favorable review, how should the editor revise the probabilities of the various outcomes to take this information into account?
What is the difference between covalent bonds and ionic bonds as used in chemistry?
Under the new structure of the sample, how will the answers to a, b, and c change and create a 95-percent confidence interval for the average distance of Brand A
Suppose that this test is given to 1000 students. What is the number of students that are expected to make scores between 170 and 230?
give all answers to four decimal places. there are four different blood types that people have a b ab and o. we will
q1. assuming that the data are normally distributed with a mean of 25 and a standard deviation of 1.25 what is the
determine the sample size needed to calculate a 95 confidence interval for a proportion with a margin or error of
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