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
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
Round up to 44
Answer sample : 44
I have answered your question.
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?