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? Upper H 0H0: muÎĽ == 33 Upper H 1H1: muÎĽ less than< 33 What type of test is being conducted in this problem?

Answer 1

Answer:

We are given:

$H_{0}: \mu = 33$

$H_{1}: \mu < 33$

Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.

Since the alternative hypothesis has less than sign, therefore the given hypothesis is left-tailed

What parameter is being tested?

The parameter used is $\mu$, which denotes the population mean.

Please note:

The type is test determined based on the alternative hypothesis.

If the alternative hypothesis has $\neq$ sign, it means the hypothesis test is two-tailed

If the alternative hypothesis has $>$ sign, it means the hypothesis test is right-tailed

If the alternative hypothesis has sign, it means the hypothesis test is left-tailed