5 an Inspection of Eight Wind Turbines Revealed That 13

Essay

5 An inspection of eight wind turbines revealed that 13 operate too loudly according to new sound restrictions. The summary statistics are
n = 80 x = 13

Let p =population proportion that are too loud.
(a) Conduct a test of hypotheses with the intent of showing that
p > .1. Take α = .05.

(b) Calculate the P-value. Does this strengthen your conclusion to the test of hypotheses? Explain.

(c) Based on the conclusion to your test in Part a, what error could you have made.

(d) Explain why, prior to sampling, that this possible error seldom occur.