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If the difference between the average of the population and the sample mean of the period from the production date to the expiry date of the ampoule is accepted to be at most 10 days at the 95% confidence level, how many products should be included in the sample? (Population variance=400)    a) 13  B) 14  NS) 15  D) 11th  TO) 10

If the difference between the average of the population and the sample mean of the period from the production date to the expiry date of the ampoule is accepted to be at most 10 days at the 95% confidence level, how many products should be included in the sample? (Population variance=400)    a) 13  B) 14  NS) 15  D) 11th  TO) 10

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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If the difference between the average of the population and the sample mean of the period from the production date to the expiry date of the ampoule is accepted to be at most 10 days at the 95% confidence level, how many products should be included in the sample? (Population variance=400)

  
 a)

13
 B)

14
 NS)

15
 D)

11th
 TO)

10
Expert Solution
Step 1
Given Data :

Margin of error,

ME = 10.0

population standard deviation,

σ = 20.0

Significance level,

α =1- 0.95 = 0.05

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