SOLUTION: 3. Assume that a sample is used to estimate a population mean μ Find the 99% confidence interval for a sample of size 1040 with a mean of 69.3 and a standard deviation of 8.9.

Algebra ->  Probability-and-statistics -> SOLUTION: 3. Assume that a sample is used to estimate a population mean μ Find the 99% confidence interval for a sample of size 1040 with a mean of 69.3 and a standard deviation of 8.9.       Log On


   

Question 1175014: 3. Assume that a sample is used to estimate a population mean
μ Find the 99% confidence interval for a sample of size 1040 with a mean of 69.3 and a standard deviation of 8.9. Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).


Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
the half-interval is t 0.995,df=1039*s/sqrt(n)=2.581*8.9/sqrt(1040)=0.71 or 0.7
68.6 < x < 70.0