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An article reports that a 95% confidence interval for the difference of two means ux -...

An article reports that a 95% confidence interval for the difference of two means ux - uy is (-5, 4.5). What can you conclude about the two sided test of Ho: ux - uy = 0 vs Ha : ux - uy (does not equal) 0?

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Answer #2

Solution:

The null and alternative hypothesis are

Ho: ux - uy = 0 vs Ha : ux - uy 0

95% confidence interval for the difference of two means ux - uy is (-5, 4.5).

Hypothetical value 0 is inside the interval (-5, 4.5)

So ,

Fail to reject Ho: ux - uy = 0

Conclusion:

There is not sufficient evidence to support the claim that there is significant difference between two means and   .

answered by: anonymous
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