3. company claims that at least 60% are mailed within 48 hours. From time to time the quality control department at the company checks whether this promise is fulfilled. Recently the quality control department at this company took a sample of 400 orders and found that 208 of them were mailed within 48 hours of the placement of the orders. Testing at a 1% signifcance level, can you conclude that the company's claim is false? Use the P-Value Approach.
3. company claims that at least 60% are mailed within 48 hours. From time to time the quality control department at the company checks whether this promise is fulfilled. Recently the quality control department at this company took a sample of 400 orders and found that 208 of them were mailed within 48 hours of the placement of the orders. Testing at a 1% signifcance level, can you conclude that the company's claim is false? Use the P-Value Approach.
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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![3. A mail-order company claims that at least 60% of all orders are mailed
within 48 hours. From time to time the quality control department at the
company checks whether this promise is fulfilled. Recently the quality control
department at this company took a sample of 400 orders and found that 208 of
them were mailed within 48 hours of the placement of the orders.
Testing at a 1% signifcance level, can you conclude that the company's claim is
false? Use the P-Value Approach.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F66301e59-a86d-47c0-9dd8-21e24614422a%2F3db2a27f-88c0-475e-a0b8-e15198d6e49c%2Foztq0y_processed.png&w=3840&q=75)
Transcribed Image Text:3. A mail-order company claims that at least 60% of all orders are mailed
within 48 hours. From time to time the quality control department at the
company checks whether this promise is fulfilled. Recently the quality control
department at this company took a sample of 400 orders and found that 208 of
them were mailed within 48 hours of the placement of the orders.
Testing at a 1% signifcance level, can you conclude that the company's claim is
false? Use the P-Value Approach.
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