Answered: The following table shows the number of…

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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Where did the 25% come from?
You have a bag of marbles that contain 292 green, 239 red, 76. Blue, and 209 yellow ones. What is the percentage for each color jellybean?
You are working with a neighborhood committee to apply for a grant to buy new playground equipment for alocal park. According to the data from the 2010 census, 27 households in the neighborhood have children and 18households do not have children. What is the percentage of families in the neighborhood that have children? Note: This is a part to whole ratio.
A hospital discharged 2,895 patients in January. If 3% developed a hospital-based infection, how many were affected?
Jovan asked 2000 people if they are afraid of spiders. 274 people said yes. What percent of the people surveyed does this represent?
The test for a certain disease is 86% accurate. A hospital tests a sample of 5000 patients for this disease and the incidence rate of the disease is 12%. Fill in the following table showing the results of this disease testing. Disease No Disease Total Test Positive Test Negative Total A. What percent of these patients tests positive? Round to the nearest 0.1%. C. If a patient tests negative, what is the percent chance they have the disease? Round to the nearest 0.1% D.Suppose you select a patient at random from this sample, what is the probability the patient has the disease or tests positive? Use three significant digits.
The following chart summarizes the complaints received at a catalogue sales call centre by day of the week. The chart shows percentages for each day. The complaints are classified as related to delivery (the order has not arrived), fulfilment (an item was missing from an order or not what was ordered), size (an item did not fit), and damage. Discuss: (a) Is the day of the week associated with the nature of the complaint? Explain why you think that these variables are or are not associated. (b) What supplemental information that is not shown by the chart is important to managers in charge of dealing with complaints?
Several years ago, two companies merged. One of the concerns after the merger was the increasing burden of retirement expenditures. An effort was made to encourage employees to participate in the 401(k) accounts. Nationwide, 63% of eligible workers participated in these accounts. The accompanying data table contains responses of 30 employees of the company when asked if they were currently participating in a 401(k) account. Complete parts a through d. Click the icon to view the data table. a. Determine the sample proportion of company workers who participate in 401(k) accounts. The sample proportion is. (Round to three decimal places as needed.) b. Determine the sampling error if in reality the company workers have the same proportion of participants in 401(k) accounts as does the rest of the nation. The error is (Round to three decimal places as needed.) c. Determine the probability that a sample proportion at least as large as that obtained in the sample would be obtained if the…
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Identify the properties of the following illustrations. 4,5,6
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At a local Dunkin’ Donuts, a survey showed that out of 1,300 customers eating lunch, 520 ordered coffee with their meal. What percent of customers did not order coffee?

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The following table shows the number of sweatshirts and T-shirts sold at a shopping mall on a particular day. Adults Students Sweatshirts 40 15 T-shirts 35 10 What percent of students bought T-shirts? 45% 40% 25% 10%