Time remaining:
help with statistics homework

Statistics
Tutor: None Selected Time limit: 0 Hours

A population is estimated to have a standard deviation of 8. We want to estimate the population mean within 2, with a 90% level of confidence

How large a sample is required (Round up your answer to the next whole number)

sample required is

Apr 10th, 2015

Sample = (zcrit x sigma / m) ^2.         Here z frit for 90% CI is 1.645

So sample = ( 1.645 x8 /4 ) ^2

                  = ( 6.58) ^2

                  = 43.3

Round up to 44

Answer sample : 44

            

Apr 10th, 2015

I have answered your question.

Niru

Apr 10th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Apr 10th, 2015
...
Apr 10th, 2015
Dec 6th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer