Hypothesis Test: Mean Content of Containers ≥ 3L

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Homework Help Overview

The discussion revolves around hypothesis testing related to the mean content of containers, specifically whether there is sufficient evidence to support the claim that the mean content is at least 3 litres.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the definitions of the null hypothesis (H0) and the alternative hypothesis (H1), questioning whether H0 should reflect the opposite of the claim regarding the mean content. There is uncertainty about the correct formulation of these hypotheses.

Discussion Status

Multiple interpretations of the null hypothesis are being explored, with some participants expressing confusion about its correct formulation. There is no explicit consensus on the definitions, and some participants have raised concerns about the wording of the original question.

Contextual Notes

Participants note that the question may be poorly worded, leading to confusion regarding the relationship between the hypotheses and the claim being tested.

princejan7
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Homework Statement



"Is there sufficient evidence to support the claim that the mean content of all such containers is at least 3 litres?


Homework Equations





The Attempt at a Solution




I'm not sure what H0 and H1 will be

H0: The mean content is not at least 3L

H1: The mean content is at least 3L. So does this imply that u, the mean, is greater than or equal to 3 or is u lower than or equal to 3?
 
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princejan7 said:
H1: The mean content is at least 3L. So does this imply that u, the mean, is greater than or equal to 3 or is u lower than or equal to 3?
Which do you think?
 
haruspex said:
Which do you think?

The solution says that for Ho, u is greater than or equal to 3

isnt the null hypothesis supposed to be the opposite of the claim?
 
@ princejan7: Of the numbers 1,2,3,4,5, which ones would you say are at least 3?
 
That the stated answer has the null hypothesis as H_0 \colon \mu \ge 3, it is a very poorly worded question. Hypothesis testing does not gather data in support of the null hypothesis
 
statdad said:
That the stated answer has the null hypothesis as H_0 \colon \mu \ge 3, it is a very poorly worded question. Hypothesis testing does not gather data in support of the null hypothesis
I'd go further and say the stated answer is simply wrong.
 
haruspex said:
I'd go further and say the stated answer is simply wrong.

I was feeling unusually mellow when I made my comment.
 

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