Here are summary statistics for randomly selected weights of newborn girls: n = 36, x=3197.2 g, s = 692.6 g. Use a confidence level of 90% to complete parts (a) through (d) below. a. Identify the critical value to/2 used for finding the margin of error. ¹x/2 = (Round to two decimal places as needed.) b. Find the margin of error. E= g (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. O A. There is a 90% chance that the true value of the population mean weight of newborn girls will fall between the lower bound and the upper bound. B. Approximately 90% of sample mean weights of newborn girls will fall between the lower bound and the upper bound. O C. One has 90% confidence that the interval from the lower bound to the upper bound contains the true value of the population mean weight of newborn girls. D. One has 90% 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=3197.2 g, s = 692.6 g. Use a confidence level of 90% to complete parts (a) through (d) below. a. Identify the critical value to/2 used for finding the margin of error. ¹x/2 = (Round to two decimal places as needed.) b. Find the margin of error. E= g (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. O A. There is a 90% chance that the true value of the population mean weight of newborn girls will fall between the lower bound and the upper bound. B. Approximately 90% of sample mean weights of newborn girls will fall between the lower bound and the upper bound. O C. One has 90% confidence that the interval from the lower bound to the upper bound contains the true value of the population mean weight of newborn girls. D. One has 90% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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