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A computed 99% confidence interval for the true difference between two populatio

ID: 3222294 • Letter: A

Question

A computed 99% confidence interval for the true difference between two population proportions is -0.025 to +0.109. Then at 99% confidence level, a. We can conclude that there is a significant difference between the two population proportions. b We cannot conclude that there is a significant difference between the two population proportions. c. We can conclude that the first population proportion is more than the second population proportion. d. Based on this result, we cannot make a meaningful statement about the difference between the two population proportions.

Explanation / Answer

option B is correct

as above interval contain values from both sides of 0, we can not conclude that there is significant differnce

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