The freezing point of water is 0^\circ\text{c}0 ∘ c0, degree, c. scientists use positive numbers to show temperatures above the freezing point of water and negative numbers to show temperatures below the freezing point of water. snowy's dessert cart keeps the ice in their snow cones at a temperature of -15^\circ\text{c}−15 ∘ cminus, 15, degree, c. what does -15^\circ\text{c}−15 ∘ cminus, 15, degree, c represent in this situation?

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).