Question

QUESTION 12 You have been asked to construct a confidence interval for a sample size of 25. What other information do you need to construct the confidence interval?

Answer 1

You are given with 25 m). a sample of size Then. If you want to construct Confidence interval for population mean M. Then you will need the value of- sample means in population Standard deviation = 6. and Z value corresponding to the confidence level. Then, C.I for M is given by Sunday Now if you want to construct C:I for population proportion Sunday 03 Then you will need the value of ps Sample proportion

Then e. I for is given by population proportio If we want to c. I for population variance or. Then we will need Sample variance = 5 and value of x from chi. square table for the given confidence Level Then. I for st is given by (n-1) s sor< (n-1) s² Xi-8/2 Xala