Which expression is equivalent to (3/4)^−2 ? a: −6/8 b: 16/9 c: 9/16 d: −9/16

What is the difference between the predicted value and the actual value

Can someone me do math because i am having a breakdown rn because i don’t get it

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).