Kim heated 12 g of Substance A to obtain 4 g of Substance B and a certain amount of Substance C. Which statement is correct? (1 point) a
Substance A and Substance Chave the same mass.
Ob
Substance B and Substance Chave the same mass.
Ос
Mass of Substance C is twice the mass of Substance B.
Od
Mass of Substance A is twice the mass of Substance al

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).