The relationship between confidence interval and hypothesis testing is very close. Do you agree? Explain.
The relationship between confidence interval and hypothesis testing is very close. Do you agree? Explain.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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- The relationship between confidence interval and hypothesis testing is very close. Do you agree? 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.
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- 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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