An architect is designing a water fountain for a park. she uses the given function to model the water jets flowing from the fountain's nozzles, where h(x) gives the height of the water jet, in feet, x feet from its starting point. select the two adjacent columns that show an interval with an average rate of change of -0.3.

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).