Question

The null and alternative hypotheses are given. Determine whether the hypothesis test is​ left-tailed, right-tailed, or​ two-tailed. What parameter is being​ tested? What type of test is being conducted in this​ problem? h0: u=3 h1: u< 3

Answer 1

The null hypothesis is H0: μ = 3 and the alternative hypothesis is H1: μ < 3. This is a left-tailed test.

Step-by-step explanation:

The null hypothesis H0 is H0: μ = 3, which means that the population mean is equal to 3. The alternative hypothesis H1 is H1: μ < 3, which means that the population mean is less than 3.

This hypothesis test is a left-tailed test because the alternative hypothesis suggests that the population mean is less than the null hypothesis value.

The parameter being tested in this problem is the population mean (μ).