6, widening the confidence interval from 95% to 99% increases the- but decreases

Question

6, widening the confidence interval from 95% to 99% increases the- but decreases the a. precision; reliability d. accuracy; precision 7. Because population parameters are typically unknown, we use the to estimate the value of the standard Sample standard deviation Population standard deviation Sample proportion a. b. c. e. Population mean. 8. The radius of a confidence interval is called the: a. Slandard deviation. b. Confidence level. d. Margin of cmor. e. None of the above. 9. If the value of the sample standard deviation increases, what happens to the confidence interval? a. It becomes wider b. It becomes more precise. c. It does not change. d. It narrOWS e. None of the above. 10. What is the goal of most rescarch? a. To support the null hypothesis b. To find the population parameter c. To seck a sample. d. To determine the confidence interval. e. To eam moncy

Explanation / Answer

Question 6) Option c) is correct.

Question 7) Option a) is correct.

Question 8) Option d) is correct.

Question 9) Option a) is correct.

Question 10) Option a) is correct.

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