A statistician chooses 12 randomly selected dates, and when examining the occupancy records of a particular motel for those dates, finds a mean number of rooms rented to be 134.33 with a standard deviation of 12.572 rooms rented. If the number of rooms rented is normally distributed, find the 90% confidence interval for the population variance of the number of rooms rented. i. Procedure: Select an answer Select an answer One mean Z procedure One mean T procedure One proportion Z procedure One variance x² procedure ii. Assumptions: (select everything that applies) Population standard deviation is known Simple random sample Sample size is greater than 30 The number of positive and negative responses are both greater than 10 Population standard deviation is unknown Normal population iii. Unknown parameter: Select an answer Select an answer u, population mean o², population variance p. population proportion
A statistician chooses 12 randomly selected dates, and when examining the occupancy records of a particular motel for those dates, finds a mean number of rooms rented to be 134.33 with a standard deviation of 12.572 rooms rented. If the number of rooms rented is normally distributed, find the 90% confidence interval for the population variance of the number of rooms rented. i. Procedure: Select an answer Select an answer One mean Z procedure One mean T procedure One proportion Z procedure One variance x² procedure ii. Assumptions: (select everything that applies) Population standard deviation is known Simple random sample Sample size is greater than 30 The number of positive and negative responses are both greater than 10 Population standard deviation is unknown Normal population iii. Unknown parameter: Select an answer Select an answer u, population mean o², population variance p. population proportion
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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
Transcribed Image Text:Question 4
RECEPTION
A statistician chooses 12 randomly selected dates, and when examining the occupancy records of a
particular motel for those dates, finds a mean number of rooms rented to be 134.33 with a standard
deviation of 12.572 rooms rented. If the number of rooms rented is normally distributed, find the 90%
confidence interval for the population variance of the number of rooms rented.
i. Procedure: Select an answer
Select an answer
One mean Z procedure
One mean T procedure
One proportion Z procedure
One variance x² procedure
ii. Assumptions: (select everything that applies)
Population standard deviation is known
Simple random sample
Sample size is greater than 30
The number of positive and negative responses are both greater than 10
Population standard deviation is unknown
O Normal population
iii. Unknown parameter: Select an answer
Select an answer
u, population mean
o², population variance
p, population proportion
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