In: Statistics and Probability
A random sample of n = 100 measurements is selected from a
population with unknown mean µ and known standard deviation σ = 10.
(a) (1 point) Calculate the width of a 90% confidence interval for
µ.
(b) Calculate the width of a 95% confidence interval for µ.
(c) (Calculate the width of a 99% confidence interval for µ.
(d) Based on the above results, what effect does increasing the
confidence coefficient have on the width of the confidence
interval.