Aresearcher at a large company has collected data on the beginning salary and current salary of 48 randomly selected employees. the least-squares regression equation for predicting their current salary from their beginning salary is = –2532.7 + 2.12x. the current salaries had a mean of $32,070 with a standard deviation of $15,300. the beginning salaries had a mean of $16,340 with a standard deviation of $5970. what is the correlation between current and beginning salary? group of answer choices

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).