Use the normal distribution to find a confidence interval for a difference in proportions p1 - P2 given the relevant sample results Assume the results come from random samples. A 95% confidence interval for p1 - P2 given that p = 0.71 with n = 510 and p2 = 0.61 with n2 = 350 Give the best estimate for p – P2, the margin of error, and the confidence interval. Round your answer for the best estimate to two decimal places and round your answers for the margin of error and the confideno interval to three decimal places. Best estimate: i 1.96 Margin of error : i 0.1 Confidence interval: i to i

Q: Use the confidence interval to find the margin of error and the sample mean. (1.59,1.87) The margin…

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Q: Use the confidence interval to find the estimated margin of error. Then find the sample mean.   A…

A: It is given that, the confidence interval is (4.4, 5.4).

Q: Calculate the margin of error and construct the confidence interval for the population mean using…

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Q: A National Center for Health Statistics survey suggested that, in the late 1970s, the mean serum…

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Q: Determine the point estimate of the population mean and margin of error for the confidence interval.…

A: We have given the lower bound 19 Upper bound is 23

Q: You sample 40 dogs and find a sample mean weight of 60 lbs with a sample standard deviation of 5.…

A: From the provided information, Sample size (n) = 40 Sample mean (x̅) = 60 lbs Sample standard…

Q: Heights for teenage boys and girls were calculated. The mean height for the sample of 47 boys was…

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Q: Embed the figure. One-tailed test; Confidence level of 95%

A: Hypothesis testing is an inference process which is used to estimate the population parameter using…

Q: The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?

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Q: Heights for teenage boys and girls were calculated. The mean height for the sample of 51 boys was…

A: given data x¯1  = 183s12 = 66n1 = 51x¯2 =173s22 = 61n2 = 7187% ci for  μ1 - μ2α = 1-0.87 = 0.13

Q: You want to obtain a sample to estimate a population mean. based on previous evidence, you believe…

A: Answer: From the given data, Population standard deviation (σ) = 23.6 Margin of error (E) = 1.8

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.