Question

A medical researcher wants to determine what the mean age is for the onset of a particular medical condition regarding men. From experience with patients, she theorizes that this mean age is greater than 60. She decides to use hypothesis testing to determine if her claim is credible.

a. write down the null and alternative hypothesis for this situation.
b. what kind of test will this be two tailed, one tailed right or one tailed left?

Answer 1

The null hypothesis is that the mean age is 60 or less, while the alternative hypothesis is that the mean age is greater than 60. This will be a one-tailed right test.

Step-by-step explanation:

a. The null hypothesis is that the mean age for the onset of the medical condition in men is 60 or less (μ ≤ 60). The alternative hypothesis is that the mean age is greater than 60 (μ > 60).

b. This will be a one-tailed right test as the researcher is specifically interested in determining if the mean age is greater than 60.