Question
The breaking strains of reel string produced at a certain factory have variance of 39.6kg 2 A sample of 45 reels from a certain batch
The breaking strains of reel string produced at a certain factory have variance of 39.6kg2
A sample of 45 reels from a certain batch were tested and their sample mean breaking was 91kg
Assume the breaking strains are normally distributed. find the lower and upper boundaries of the 98% confidence interval.
The Z value you require is 2.3263
Find,
lower boundary for 98%confidence interval is :
Upper boundary for 98% confidence interval is :
give answer to 2 decimal places
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Business Ethics A Stakeholder And Issues Management Approach
Authors: Joseph W. Weiss
7th Edition
1523091541, 978-1523091546
