Construct the indicated confidence intervals for the population
variance and the population standard deviation. Assume
the sample is from a normally distributed population.
c= 0.95, s^2= 15.95, n= 25
a. Confidence interval for σ2: (9.42,
29.18); Confidence interval for σ: (3.07, 5.40)
b. Confidence interval for σ2: (10.17,
26.20); Confidence interval for σ: (3.19, 5.12)
c. Confidence interval for σ2: (14.49,
27.64); Confidence interval for σ: (3.81, 5.26)
d. Confidence interval for σ2: (9.72,
30.87); Confidence interval for σ: (3.12, 5.56)