Here are summary statistics for randomly selected weights of newborn girls: n = 36, x=3180.6 g,...

 

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Here are summary statistics for randomly selected weights of newborn girls: n = 36, x=3180.6 g, s = 700.5 g. Use a confidence level of 99% to complete parts (a) through (d) below. a. Identify the critical value ta/2 used for finding the margin of error. ta/2= (Round to two decimal places as needed.) b. Find the margin of error. E= 9 (Round to one decimal place as needed.) c. Find the confidence interval estimate of μ. ☐ g<μ<g (Round to one decimal place as needed.) d. Write a brief statement that interprets the confidence interval. Choose the correct answer below. ○ A. Approximately 99% of sample mean weights of newborn girls will fall between the lower bound and the upper bound. B. There is a 99% chance that the true value of the population mean weight of newborn girls will fall between the lower bound and the upper bound. OC. One has 99% confidence that the interval from the lower bound to the upper bound contains the true value of the population mean weight of newborn girls. OD. One has 99% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls. Here are summary statistics for randomly selected weights of newborn girls: n = 36, x=3180.6 g, s = 700.5 g. Use a confidence level of 99% to complete parts (a) through (d) below. a. Identify the critical value ta/2 used for finding the margin of error. ta/2= (Round to two decimal places as needed.) b. Find the margin of error. E= 9 (Round to one decimal place as needed.) c. Find the confidence interval estimate of μ. ☐ g<μ<g (Round to one decimal place as needed.) d. Write a brief statement that interprets the confidence interval. Choose the correct answer below. ○ A. Approximately 99% of sample mean weights of newborn girls will fall between the lower bound and the upper bound. B. There is a 99% chance that the true value of the population mean weight of newborn girls will fall between the lower bound and the upper bound. OC. One has 99% confidence that the interval from the lower bound to the upper bound contains the true value of the population mean weight of newborn girls. OD. One has 99% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls.

Answer rating: 100% (QA)

Given Data Sample size n n n 36 Sample mean x barx x 31806 g Sample standard deviation s s s 7005 g ... View the full answer