An elevator company claims that they are well within safety limits because the average weight of Americans is 184.5 lbs. The building owner disputes this and takes a random sample of 60 people and finds a mean of 187.1 lbs and standard deviation of 16.5 lbs. Using a 0.05 significance level, test the hypothesis that Americans have a higher mean weight than the elevator company claims. H0=? H1=? Critical value(s): Show rejection regions with labelled critical value(s) on a graph. Test statistic: state what test stat is being used (z,t), the formula being used, and what values are substituted into the formula. P-value: ? State the conclusion of the test in the context of the problem.
An elevator company claims that they are well within safety limits because the average weight of Americans is 184.5 lbs. The building owner disputes this and takes a random sample of 60 people and finds a
H0=?
H1=?
Critical value(s):
Show rejection regions with labelled critical value(s) on a graph.
Test statistic: state what test stat is being used (z,t), the formula being used, and what values are substituted into the formula.
P-value: ?
State the conclusion of the test in the context of the problem.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images