MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Concept explainers

Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 …
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experime…
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1 proportion z-test 1. A local news report claims that 40% of the vehicles on the freeways are vans or SUV's. You go to a nearby freeway overpass, count 60 vehicles, of which only 19 are vans or SUV's. Can we say, using a = .05, that the actual percentage is lower than the news report? 2. A company claims that 90% of its deliveries arrive on time. You take a sample of 74 deliveries, of which only 59 arrive on time. Is this enough evidence to say that the true percentage of on-time deliveries is lower than claimed? (Use a = .10)
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Transcribed Image Text:1 proportion z-test 1. A local news report claims that 40% of the vehicles on the freeways are vans or SUV's. You go to a nearby freeway overpass, count 60 vehicles, of which only 19 are vans or SUV's. Can we say, using a = .05, that the actual percentage is lower than the news report? 2. A company claims that 90% of its deliveries arrive on time. You take a sample of 74 deliveries, of which only 59 arrive on time. Is this enough evidence to say that the true percentage of on-time deliveries is lower than claimed? (Use a = .10)
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