7. A researcher wants his/her estimate with margin of error. Which of the following is suggested? A. reduce the sample size. use a sample size of 30. C. increase the sample size. D. use a sample size of less than 25. a minimum В. 8. How large is the sample size required so that a researcher is 99% standard deviation 5, that the error will not be more than confident with the estimate of a sample, of А. 6. B. 13 С. 42 D. 84

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