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a. Identify the critical value ta/2 used for finding the margin of error. w/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 u. << (Round to one decimal place as needed.) d. Write a brief statement that interprets the confidence interval. Choose the correct answer below. OA. There is a 99% chance that the true value of the population mean weight of newbom girls will fall between the lower bound and the upper bound. ⒸB. 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. OC. One has 99% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls. OD. Approximately 99% of sample mean weights of newborn girls will fall between the lower bound and the upper bound.

a. Identify the critical value ta/2 used for finding the margin of error. w/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 u. << (Round to one decimal place as needed.) d. Write a brief statement that interprets the confidence interval. Choose the correct answer below. OA. There is a 99% chance that the true value of the population mean weight of newbom girls will fall between the lower bound and the upper bound. ⒸB. 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. OC. One has 99% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls. OD. Approximately 99% of sample mean weights of newborn girls will fall between the lower bound and the upper bound.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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a. Identify the critical value a/2 used for finding the margin of error ¹/2 = (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 u. << (Round to one decimal place as needed.) d. Write a brief statement that interprets the confidence interval. Choose the correct answer below. OA. 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. ⒸB. 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. OC. One has 99% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls. OD. Approximately 99% of sample mean weights of newborn girls will fall between the lower bound and the upper bound.
Transcribed Image Text:a. Identify the critical value a/2 used for finding the margin of error ¹/2 = (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 u. << (Round to one decimal place as needed.) d. Write a brief statement that interprets the confidence interval. Choose the correct answer below. OA. 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. ⒸB. 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. OC. One has 99% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls. OD. Approximately 99% of sample mean weights of newborn girls will fall between the lower bound and the upper bound.
Here are summary statistics for randomly selected weights of newborn girls: n=36, x= 3222.2 g, s= 686.7 g. Use a confidence level of 99% to complete parts (a) through (d) below. a. Identify the critical value to/2 used for finding the margin of error. ta/2=0 (Round to two decimal places as needed.)
Transcribed Image Text:Here are summary statistics for randomly selected weights of newborn girls: n=36, x= 3222.2 g, s= 686.7 g. Use a confidence level of 99% to complete parts (a) through (d) below. a. Identify the critical value to/2 used for finding the margin of error. ta/2=0 (Round to two decimal places as needed.)
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