MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:3.7 A community within a city contains 3000 households and 10,000 persons. For
purposes of planning a community satellite to the local health department, it is
desired to estimate the total number of physician visits made during a calendar
year by members of the community. For this information to be useful, it
should be accurate to within 10% of the true value. A small pilot survey of 10
households, conducted for purposes of gathering preliminary information,
yielded the accompanying data on physician visits made during the previous
calendar year. Using these data as preliminary information, determine the
sample size needed to meet the specifications of the survey.
Transcribed Image Text:Household
1
2
3
4
5
6
7
860
9
10
No. of Persons in
Household
3
6
2
5
2
426 WI
3
4
No. of Physician Visits Per Per-
son During Previous Year
4.0
4.5
8.0
3.4
.5
7.0
8.5
6.0
4.0
7.5
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