Quiz: Final Exam This Question: 14 pts (a) The c 17of24(12 compete) population s

Question

Quiz: Final Exam This Question: 14 pts (a) The c 17of24(12 compete) population standard deviation is 0 50 inch B (Round up to the nearest whole number as needed) (Round up to the nearest whole number as needed) A. The tolerance E 0 25 inch requies a larger sample size As error size increases a larger sampie B. The tolerance E-0.125 inc must be taken to ensure the desined accurasy e E-0 26 inch requires a larger sample size As error size decreases a larger sample must be taken to ensure the deseed accuracy h requires a larger sample size As error size decreases, a larger sample must be taken t nch requires a larger sample size As error size increases, a larger sample must be taken to ensure the desred ac ensure the desired accuracy curacy

Explanation / Answer

Solution:-
a) Given that Z = 1.645 , s = 0.50 , E = 0.25

n = [z*s/E]^2

n = [1.645*0.50/0.25]^2

n = 10.8241

n = 11

=> n = [1.645*0.50/0.125]^2 = 43.2964 = 43

b) option D. The tolerance E = 0.125 inch requires a larger sample size. As error size decreases, a larger sample must be taken to ensure the desired accuracy.

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