1. The best point estimate of P,the population proportion is r2 D.. 2. The T dis
ID: 3325329 • Letter: 1
Question
1. The best point estimate of P,the population proportion is r2 D.. 2. The T distribution is used to develop confidence interval estimate of the population proportion when the population standard deviation is unknown. A. True B. False 3. The sample mean is a point estimate of the population mean A. True B. False. 4. Which of the following would be an appropriate null hypothesis? A. The population is less than 0.65. B. The sample proportion is less than 0.65. C. The population proportion is at least 0.65 D. The sample proportion is not less than 0.65 5. Which of the following would be an appropriate alternative hypothesis? A. The population is less than 0.65. B. The sample proportion is less than 0.65. C. The population proportion is at least 0.65 D. The sample proportion is not less than 0.65 6. A Type I error is committed when A. We reject a null hypothesis that is true. B. We do not reject a null hypothesis that is true. C. We reject a null hypothesis that is false. D. We do not reject a null hypothesis that is false.Explanation / Answer
Solution:-
1. option C.
The best point estimate of P,the population proportion is x/n
2. option A. True
3. option A. True
4. option C. The population proportion is atleast 0.65
5. option A. The population is less than 0.65
6. option A. we reject a null hypothesis that is true.
7. option B. one tailed test should be utilized
8. option A. correct
9. option A. & B the null hypothesis should be rejected.
10. option B. no error
11. option B. The critical value.
12. option B. critical value.
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