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The 95% confidence interval for the difference in proportions between sample 1 and same 2 is...

The 95% confidence interval for the difference in proportions between sample 1 and same 2 is approx.

(-0.006, 0.286). What is the appropriate conclusion?

Is the difference significant, highly significant or insignificant at the 5% significance level.

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Solution: The 95% confidence interval for the difference in proportions between sample 1 and same 2 is approx. (-0.006, 0.286).

What is the appropriate conclusion? Is the difference significant, highly significant or insignificant at the 5% significance level.

Answer: We are given the approximate 95% confidence interval for the difference in proportions between sample1 and sample 2 is .

So we can conclude that there is a 95% chance that the confidence interval calculated contains the true difference in proportions between sample 1 and sample 2.

Since the 95% confidence interval for the difference in proportions contains 0, therefore we can conclude that the difference is insignificant at the 5% significance level.

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