Test Hypothesis and determine results

Anonymous

Question description

A company is developing a new high-performance wax for cross country ski racing. In order to justify the price marketing wants, the wax needs to be very fast. Specifically, the mean time to finish their standard test course should be less than 55 seconds for a former Olympic champion. To test it, the champion will ski the course 8 times. The champions times (selected at random) are 55.3, 65.7, 46.1, 53.2, 45.2, 45.3, 51.3, 41.4 seconds to complete the test course.

A. What is the hypothesis?

B. What is the test statistic?.

C. What is the p-value?

d Shpuld they market and why

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