In: Statistics and Probability
Suppose you are trying to determine the number of boxes you need
to order to be able to ship the orders from your small business
this week. You consistently over- or underestimate how many you
need, so you decide to figure it out with statistics! You take a
sample of data you’ve recorded from past orders.
Consider a sample with the following properties: x̅ = 893.6, s =
63.2, n = 48
A) Why might you prefer an interval estimate over a point
estimate?
B) Calculate a confidence interval with a confidence level of
95%
C) Interpret your results from part B.
D) Calculate a confidence interval with a confidence level of
99%
E) Why is the 99% confidence interval wider than the 95% confidence
interval?