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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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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.
(Round to two decimal places as needed.)
Transcribed Image Text: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. (Round to two decimal places as needed.)
a. Identify the critical value to/2 used for finding the margin of error.
tx/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<9
(Round to one decimal place as needed.)
d. Write a brief statement that interprets the confidence interval. Choose the correct answer below.
O A. One has 99% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls
Transcribed Image Text:a. Identify the critical value to/2 used for finding the margin of error. tx/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<9 (Round to one decimal place as needed.) d. Write a brief statement that interprets the confidence interval. Choose the correct answer below. O A. One has 99% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls
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