Additional Information and Full Hypothesis Test Examples · Exercise 51
Hypothesis testing: For the following 10 exercises, answer each question.
The Weather Underground reported that the mean amount of summer rainfall for the northeastern United States is at least 11.52 inches. Ten cities in the northeast are randomly selected and the mean rainfall amount is calculated to be 7.42 inches with a standard deviation of 1.3 inches. At the α = 0.05 level, can it be concluded that the mean rainfall was below the reported average? What if α = 0.01? Assume the amount of summer rainfall follows a normal distribution.
OpenStax, Statistics · §9.5 Additional Information and Full Hypothesis Test Examples · Exercise 51
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