Question

You are comparing two population means, say population A and population B. By doing that, you...

You are comparing two population means, say population A and population B. By doing that, you are calculating a 90% confidence interval for the difference means for sample A and sample B. This 90% confidence interval yields μA - μB = (-2.876, 5.398)

Based on this 90% confidence interval, a student concluded that the mean of population A is more than the mean of population B.

True

False

Math   Statistics-And-Probability   
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Answer #1

From the given information,

Null and Alternative hypothesis is,

H0:mean of population A same as the mean of population B.

Ha:mean of population A is more than the mean of population B.

This 90% confidence interval yields μA - μB = (-2.876, 5.398)

The given confidence interval include 0.

Hence, we fail to reject null hypothesis (H0)

Based on this 90% confidence interval, a student concluded that the mean of population A is more than the mean of population B.

False

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