a. Identify the critical value a/2 used for finding the margin of error. 1/2=0 (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 (Round to one decimal place as needed.) d. Write a brief statement that interprets the confidence interval. Choose the correct answer below. A. There is a 95% 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 95% of sample mean weights of newborn girls will fall between the lower bound and the upper bound. C. One has 95% 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 95% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls.
a. Identify the critical value a/2 used for finding the margin of error. 1/2=0 (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 (Round to one decimal place as needed.) d. Write a brief statement that interprets the confidence interval. Choose the correct answer below. A. There is a 95% 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 95% of sample mean weights of newborn girls will fall between the lower bound and the upper bound. C. One has 95% 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 95% 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
Section10.4: Distributions Of Data
Problem 22PFA
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Question
Here are summary statistics for randomly selected weights of newborn girls:
n=36, x=3150.0 g, s=695.5 g. Use a confidence level of 99% to complete parts (a) through (d) below.
Transcribed Image Text:a. Identify the critical value t/2 used for finding the margin of error.
ta/2=
(Round to two decimal places as needed.)
b. Find the margin of error.
(Round to one decimal place as needed.)
c. Find the confidence interval estimate of u.
9<μ<9
(Round to one decimal place as needed.)
d. Write a brief statement that interprets the confidence interval. Choose the correct answer below.
A. There is a 95% 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 95% of sample mean weights of newborn girls will fall between the lower bound and the upper bound.
C. One has 95% 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 95% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls.
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