The coordinates of the vertices of quadrilateral rstu are r(−4, 1) , s(4, −1) , t(3, −6) , and u(−5, −4) . which statement correctly describes whether quadrilateral rstu is a rectangle?

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).