F. The area of a trapezoid is 253 square centimeters. The longer base of the trapezoid is 14 centimeters. The shorter base of the trapezoid is 8 centimeters.
8 centimeters
X centimeters
14 centimeters
What is the height of the trapezoid?

A:13 centimeters

B:11.5 centimeters

C:23 centimeters

D:5.75 centimeters

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).