Question
A bookstore has a website for which eighty percent (80%) of their book sales are to out-of-state customers and not subject to the collection of
A bookstore has a website for which eighty percent (80%) of their book sales are to out-of-state customers and not subject to the collection of sales tax. The sample proportion, , of all sales to out-of-state customers from samples of size 100 will vary in repeated sampling. The sampling distribution for is approximately normal with a mean of 0.8 and a standard deviation of 0.04. Find the probabilities given in parts (a) through (d). Sketch the density curve and shade the area that represents the probability. Show all calculations for the probability.
c) What is the probability that at most 0.72 of the sample is out-of-state customers?
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started