Question

Joe hypothesizes that the average age of the population of Florida is less than 37 years. He records a sample mean equal to 37 and states the hypothesis as μ = 37 vs μ < 37. What type of test should Joe do?

Answer 1

The test Joe should do is a Left-tailed test

Explanation:

From the question we are told that

The null hypothesis is
`H_o : \mu = 37`

The alternative is
`H_a : \mu < 37`

Here looking at the alternative hypothesis we see that
`\mu < 37` , this tell us that the test is a Left-tailed test , it tell us that the value we are considering is at left side of the area under the normal curve