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(b) What is the confidence level for the interval x ± 1.410/√n? (Round your answer to one decimal place.) 86.4 X %

(b) What is the confidence level for the interval x ± 1.410/√n? (Round your answer to one decimal place.) 86.4 X %

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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i need perfec ans in this question previous ans on barteleby was given wrong 

Consider a normal population distribution with the value of σ known. (a) What is the confidence level for the interval x ± 2.880/√n? (Round your answer to one decimal place.) 99.6 USE SALT (b) What is the confidence level for the interval x ± 1.410/√n? (Round your answer to one decimal place.) 86.4 X % (c) What value of Za/2 Za/2 (x-₂ = 2.97 % in the CI formula below results in a confidence level of 99.7%? (Round your answer to two decimal places.) VA) a/2 √n (d) Answer the question posed in part (c) for a confidence level of 66%. (Round your answer to two decimal places.) Za/2=0.95
Transcribed Image Text:Consider a normal population distribution with the value of σ known. (a) What is the confidence level for the interval x ± 2.880/√n? (Round your answer to one decimal place.) 99.6 USE SALT (b) What is the confidence level for the interval x ± 1.410/√n? (Round your answer to one decimal place.) 86.4 X % (c) What value of Za/2 Za/2 (x-₂ = 2.97 % in the CI formula below results in a confidence level of 99.7%? (Round your answer to two decimal places.) VA) a/2 √n (d) Answer the question posed in part (c) for a confidence level of 66%. (Round your answer to two decimal places.) Za/2=0.95
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