Answered: Suppose a shipment of oranges is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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{Narrative: Oranges}
Suppose a shipment of oranges is advertised to weigh 5 pounds per bag. We know that not every bag can contain exactly 5 pounds of oranges. We decide to take a random sample of 100 bags of oranges and find out what they tell us about the population of all bags in this shipment. We are only interested in whether or not the bags are underweight, so each bag is weighed and counted as underweight if it weighs less than 5 pounds. Ten bags in our sample of 100 were found to be underweight.

1. What is the sample size?

2. What percentage of the sample is underweight?

3. what is the margin of error for a 90% confidence interval for the proportion of bags in the shipment that are underweight?

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