A random sampleof 10 shipments of stick-on labels showed the following order sizes.
(a) Construct a 95% confidence intervalfor the true meanorder size.
(b) How could the confidence interval be made narrower?
(c) Do you think the population is normal? Order Size
12,000 18,000 30,000 60,000 14,000 10,500 52,000 14,000 15,700 19,000
The expert examines confidence interval for random samples. A complete, neat and step-by-step solution is provided in the attached Excel file.