(1 point) Two random samples are taken, with each group asked if they support a particular...

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(1 point) Two random samples are taken, with each group asked if they support a particular candidate. A summary of the sample sizes and proportions of each group answering yes are given below: Pop. 1 n 92, P 0.848 Pop. 2: n2 = 99, P2 = 0.669 Suppose that the data yields (0.0511, 0.3069) for a confidence interval for the difference p -P2 of the population proportions. What is the confidence level? (Give your answer as a percentage, without the % symbol, rounded to one decimal place.) Hint: You know the margin of error and the SE. Solve for z-star from the formula for margin of error. Now find the value of alpha knowing that z-star leaves an area of alpha/2 to its right. The confidence is 1 minus alpha. Confidence Level = 98 Preview My Answers Submit Answers You have attempted this problem 2 times. Your overall recorded score is 096. You have 1 attempt remaining.

math Statistics-And-Probability

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