Let xn be a sample from an n(0, 1) distribution and let yn be an independent sample from an n(1, 1) distribution.
a. determine the expected rank sum of the x’s.
b. determine the variance of the rank sum of the x’s

36 inches/second = yards/minute how many yards?

What describes horizontal cross section of the right rectangle 6m 8m 5m

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).