+
Hypothesis Testing for a Mean

Hypothesis Testing for a Mean

Rating:
Rating
(0)
Author: mary daunis
Description:

-illustrate a hypthesis test for a mean when the population standard deviation is not known

-explore the difference between claims stated with < symbol and with ≤ symbol

Properly identifying the stated claim in a hypothesis testing process is key to succesfully composing the correct final conclusion. In this packet, I use slightly different wording for the claim in two hypothesis tests and show othe effect on the wording of the conclusion.

(more)
See More

Try Our College Algebra Course. For FREE.

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

25 Sophia partners guarantee credit transfer.

221 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 20 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial

Hypothesis Test for a Mean - Claim has ≤

In this statement of the problem, the population standard deviation is not known and the claim is stated using a ≤ symbol. Pay close attention to how the alternative hypothesis is formed - a common point of confusion is that the alternative hypothesis is always the opposite of the claim but this is not the case. Rather, the alternative hypothesis is either the same as the claim or the opposite of the claim - it depends on how the claim is stated.

Hypothesis Test for a Mean - Claim has <

Here I show how a small change in the wording of the original claim makes a big difference in the form of the alternative hypothesis, which in turn alters the wording of the final conclusion.