ANSWER ONLY C AND D. 4. A sample of 100 Grade 9 students' ages have been obtained to estimate the meanage of all Grade 9 students. X= 16 years and the population variance is 16.a. What is the point estimate for u?- The point estimate of population mean is sample mean = 16b. Find the 95% confidence interval for u.The critical value for ? = 0.05 and for two tailed test.Zc = 1.9690% C.I = ( x ± Zc x ?/vn)= ( 16 ± 1.96*4v100)= ( 15.216, 16.784 )C. Find the 99% confidence interval for µ.d. What conclusions can you make, based on each estimate?

Given that Sample size n =100 Sample mean =16 Variance =16 SD=4

Answered: C. Find the 99% confidence interval for…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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C. Find the 99% confidence interval for u. d. What conclusions can you make, based on each estimate?