Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

110% 9. A bookstore has a website for which ninety percent (90%) of their book sales are to out-ofstate customers and not subject to the

image text in transcribed

image text in transcribed
110% 9. A bookstore has a website for which ninety percent (90%) of their book sales are to out-ofstate customers and not subject to the collection of sales tax. The sample proportion, p", of all sales to out-of-state customers from samples of size 100 will vary in repeated sampling. The sampling distribution for p is approximately normal with a mean of 0.9 and a standard deviation of 0.03. Find the probabilities given in parts (a) through (c). Sketch the density curve and shade the area that represents the probability. Show all calculations for the probability. a) What is the probability that at least 0.93 of the sample is out-of-state customers? b) What is the probability that at most 0.81 of the sample is out-of-state customers? c) What is the probability that at least 0.88 of the sample is out-of-state customers? d) What is the probability that between 0.84 and 0.96 of the sample is out-of-state customers

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Real Analysis

Authors: N L Carothers

1st Edition

1139632434, 9781139632430

More Books

Students also viewed these Mathematics questions

Question

What is a (a) dichotomous variable? (b) binary variable?

Answered: 1 week ago

Question

An improvement in the exchange of information in negotiations.

Answered: 1 week ago

Question

1. Effort is important.

Answered: 1 week ago