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Two scanners, Brand A and Brand B, are both designed to detect forged cinema tickets. To determine whether there is a difference in the performance of the two scanners 300 forged tickets were randomly selected and scanned by each. It was found that 197 forgeries were detected by Brand A while Brand B detected 178. Is there a difference in the performance of the two brands of scanners? Explain.

Two scanners, Brand A and Brand B, are both designed to detect forged cinema tickets. To determine whether there is a difference in the performance of the two scanners 300 forged tickets were randomly selected and scanned by each. It was found that 197 forgeries were detected by Brand A while Brand B detected 178. Is there a difference in the performance of the two brands of scanners? Explain.

MATLAB: An Introduction with Applications
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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Two scanners, Brand A and Brand B, are both designed to detect forged cinema tickets. To determine whether there is a difference in the performance of the two scanners 300 forged tickets were randomly selected and scanned by each. It was found that 197 forgeries were detected by Brand A while Brand B detected 178. Is there a difference in the performance of the two brands of scanners? Explain. A consultant believes that the price of a stock in a stock exchange will grow at a rate of 5% per week with a standard deviation of 1%. An investor believes the stock won't grow as quickly. The changes in the price (%) recorded for 12 consecutive weeks are as follows: 3, 4, 2, 1, 3, 6, 1, 1, 2, 2, 3, 1. Who would you agree? the consultant or the investor? Explain.
Transcribed Image Text:Two scanners, Brand A and Brand B, are both designed to detect forged cinema tickets. To determine whether there is a difference in the performance of the two scanners 300 forged tickets were randomly selected and scanned by each. It was found that 197 forgeries were detected by Brand A while Brand B detected 178. Is there a difference in the performance of the two brands of scanners? Explain. A consultant believes that the price of a stock in a stock exchange will grow at a rate of 5% per week with a standard deviation of 1%. An investor believes the stock won't grow as quickly. The changes in the price (%) recorded for 12 consecutive weeks are as follows: 3, 4, 2, 1, 3, 6, 1, 1, 2, 2, 3, 1. Who would you agree? the consultant or the investor? Explain.
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