Obesity is an increasing problem in America among all age groups. A recent study reported 1276 individuals in a sample af 4115 adults were found to be obese (a body mass index exceeding 30; this index is a measure af weight relative to height). Five years ago, survey based on peaple's own assessmentrevealed that 20% of adult Americans considered themselves obese. Does the mostrecent data suggest that the true proportion of adults who are obese is more than 1.5 times the percentage from the self-assessment survey? Carry out a test using a significance level of 5%. Question 3 Determine the critical value. z- 1.645 O t= -1.645 z = 1.96 2 = 1.282 O t= 1.96 z= -1.282
Obesity is an increasing problem in America among all age groups. A recent study reported 1276 individuals in a sample af 4115 adults were found to be obese (a body mass index exceeding 30; this index is a measure af weight relative to height). Five years ago, survey based on peaple's own assessmentrevealed that 20% of adult Americans considered themselves obese. Does the mostrecent data suggest that the true proportion of adults who are obese is more than 1.5 times the percentage from the self-assessment survey? Carry out a test using a significance level of 5%. Question 3 Determine the critical value. z- 1.645 O t= -1.645 z = 1.96 2 = 1.282 O t= 1.96 z= -1.282
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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Transcribed Image Text:Obesity is an increasing problem in America among all age groups. A recent study
reparted 1276 individuals in a sample of 4115 adults were found to be obese (a body mass index
exceeding 30; this index is a measure of weight relative to height). Five years ago, surveybased
on people's own assessmentrevealedthat 20% of adult Americans considered themselves obese.
Daes the mostrecent data suggest that the true propartion of adults who are abese is more than
1.5 times the percentage from the self-assessment survey? Carryout a test using a significance
level of 5%.
Question 3
Determine the critical value.
O z- 1.645
O t= -1.645
z = 1.96
z = 1.282
O t= 1.96
z = -1.282
Frfff
n (Ctrl) -
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