Essay
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The mean household income,in dollars,must be estimated for a town that is divided into three districts.The relevant information is shown in the table.
A 95% confidence interval for the population mean that extends $550 on each side of the sample estimate is required.
-Determine how many sample observations are needed under the proportional allocation scheme.
Correct Answer:
Verified
1.96σ 
= 550 ⇒ σ
= 280.612 ...View Answer
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Correct Answer:
Verified
= 550 ⇒ σ
= 280.612 ...
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
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