Hypothesis Test for lightning Deaths Refer to the sample data given in Cumulative Review Exercise 1 and consider those data to be a random sample of annual lightning deaths from recent years. Use those data with a 001 significance level to test the claim that the mean number of annual lightning deaths is less than the mean of 72.6 deaths from the 1980s. If the mean is now lower than in the past, identify one of the several factors that could explain the decline.

Answer rating: 100% (QA)

To test the hypothesis is that the mean annual lighting deaths is less than 7260 deaths at 1 signifi... View the full answer