20. The probability that the researcher will commit a type II error for the particular alternative value of the parameter at which she computed the power is (A) 0.01. (B) 0.10. (C) 0.90. (D)equal to 1 -(P-value) and cannot be determined until the data have been collected.

18. To assess the accuracy of a laboratory scale, a standard weight that is known to weigh 1 gram is repeatedly weighed a total of n times and the mean of the weighings is computed. Suppose the scale readings are normally distributed with unknown mean and standard deviation =0.01 g. How large should : be so that a 95% confidence interval for has a margin of error of±0.0001? (A) 100(B)196(C)10000(D) 38416

20. The probability that the researcher will commit a type II error for the particular alternative value of the parameter at which she computed the power is (A) 0.01. (B) 0.10. (C) 0.90. (D)equal to 1 -(P-value) and cannot be determined until the data have been collected.

其他試題

20. The probability that the researcher will commit a type II error for the particular alternative value of the parameter at which she computed the power is
(A) 0.01.
(B) 0.10.
(C) 0.90.
(D)equal to 1 -(P-value) and cannot be determined until the data have been collected.