power II. An Indian company manufacturing bank for WIFI routers (rechargeable with 38,400 mAH capacity) is ISO45001:2018 and ISO 9000:2015 certified. The company processes are anchored on those standards; assuring their customers a level of quality that meets their requirements. Thus, before shipping their product, a quality test is undertaken to determine whether or not there is a defect. In a random sample of 400 units, 60 were found defective. Estimate with 99% confidence the true proportion of defective units produced by the company.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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II. An Indian company manufacturing power
bank for WIFI routers (rechargeable with
38,400 mAH capacity) is ISO45001:2018 and
ISO 9000:2015 certified. The company
processes are anchored on those standards;
assuring their customers a level of quality that
meets their requirements. Thus, before
shipping their product, a quality test is
undertaken to determine whether or not there
is a defect. In a random sample of 400 units,
60 were found defective. Estimate with 99%
confidence the true proportion of defective
units produced by the company.
Transcribed Image Text:II. An Indian company manufacturing power bank for WIFI routers (rechargeable with 38,400 mAH capacity) is ISO45001:2018 and ISO 9000:2015 certified. The company processes are anchored on those standards; assuring their customers a level of quality that meets their requirements. Thus, before shipping their product, a quality test is undertaken to determine whether or not there is a defect. In a random sample of 400 units, 60 were found defective. Estimate with 99% confidence the true proportion of defective units produced by the company.
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