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160 145.8 146.9 The mean of the data set is 149.8; the sample standard deviation is 16.557; if the normality plot is not provided you may assume that the broadband speeds are normally distributed. Construct a 99% confidence interval for the variance (standard deviation) of broadband speed for the service provider. i. Procedure: Select an answer Select an answer One mean Z procedure One mean T procedure One variance x² procedure One proportion Z procedure ii. Assumptions: (select everything that applies) The number of positive and negative responses are both greater than 10 Sample size is greater than 30 Population standard deviation is known Simple random sample Normal population Population standard deviation is unknown iii. Unknown parameter: Select an answer Select an answer p, population proportion o², population variance u, population mean

160 145.8 146.9 The mean of the data set is 149.8; the sample standard deviation is 16.557; if the normality plot is not provided you may assume that the broadband speeds are normally distributed. Construct a 99% confidence interval for the variance (standard deviation) of broadband speed for the service provider. i. Procedure: Select an answer Select an answer One mean Z procedure One mean T procedure One variance x² procedure One proportion Z procedure ii. Assumptions: (select everything that applies) The number of positive and negative responses are both greater than 10 Sample size is greater than 30 Population standard deviation is known Simple random sample Normal population Population standard deviation is unknown iii. Unknown parameter: Select an answer Select an answer p, population proportion o², population variance u, population mean

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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Question 5 The proper operation of web-based applications on a phone requires broadband speeds that do not vary much. Listed below are 13 broadband speeds (in Mbps) measured on 13 different days. 121.3 148.8 137.7 171 126.7 173.4 145.2 174.1 153 143.5 160 145.8 146.9 The mean of the data set is 149.8; the sample standard deviation is 16.557; if the normality plot is not provided you may assume that the broadband speeds are normally distributed. 100 Mb Construct a 99% confidence interval for the variance (standard deviation) of broadband speed for the service provider. i. Procedure: Select an answer Select an answer One mean Z procedure One mean T procedure One variance x² procedure One proportion Z procedure ii. Assumptions: (select everything that applies) The number of positive and negative responses are both greater than 10 Sample size is greater than 30 Population standard deviation is known Simple random sample Normal population Population standard deviation is unknown iii. Unknown parameter: Select an answer Select an answer p, population proportion o², population variance μ, population mean
Transcribed Image Text:Question 5 The proper operation of web-based applications on a phone requires broadband speeds that do not vary much. Listed below are 13 broadband speeds (in Mbps) measured on 13 different days. 121.3 148.8 137.7 171 126.7 173.4 145.2 174.1 153 143.5 160 145.8 146.9 The mean of the data set is 149.8; the sample standard deviation is 16.557; if the normality plot is not provided you may assume that the broadband speeds are normally distributed. 100 Mb Construct a 99% confidence interval for the variance (standard deviation) of broadband speed for the service provider. i. Procedure: Select an answer Select an answer One mean Z procedure One mean T procedure One variance x² procedure One proportion Z procedure ii. Assumptions: (select everything that applies) The number of positive and negative responses are both greater than 10 Sample size is greater than 30 Population standard deviation is known Simple random sample Normal population Population standard deviation is unknown iii. Unknown parameter: Select an answer Select an answer p, population proportion o², population variance μ, population mean
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