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a. Find the z-score for x = 71 b. Find the z-score for x = 79 c. Find P(x > 79) att to rigst at detalt to rignol art

a. Find the z-score for x = 71 b. Find the z-score for x = 79 c. Find P(x > 79) att to rigst at detalt to rignol art

MATLAB: An Introduction with Applications
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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12.) The lifespan, in hours, of a batch of batteries is normally distributed, with mean 75 and standard deviation 6. Let x be the lifespan of a single, randomly chosen battery. a. Find the z-score for x = 71 b. Find the z-score for x = 79 c. Find P(x>79) d. Find P(x<71) simse eriti de alto rignol art not sanshav ant boit d tiv zolo reiled to lie to ignet som at not lovisini sonsbitno bi b De to level sonsbilnos e. Let x be the mean lifespan of a randomly chosen sample of 9 batteries. Find the z-score for x = 71 statisti silt od X39/cobia zi no à eno bris 2 sno, 2'E ovit 2'5 ows siw sih bable-1s9qz6 und OYL beilon zi si nefis sib oris to obiż got er noen 091) In add no owal 918 2worowreel 1) Xto noutodidah yildadong di wod jahan f. Find P(x<71)
Transcribed Image Text:12.) The lifespan, in hours, of a batch of batteries is normally distributed, with mean 75 and standard deviation 6. Let x be the lifespan of a single, randomly chosen battery. a. Find the z-score for x = 71 b. Find the z-score for x = 79 c. Find P(x>79) d. Find P(x<71) simse eriti de alto rignol art not sanshav ant boit d tiv zolo reiled to lie to ignet som at not lovisini sonsbitno bi b De to level sonsbilnos e. Let x be the mean lifespan of a randomly chosen sample of 9 batteries. Find the z-score for x = 71 statisti silt od X39/cobia zi no à eno bris 2 sno, 2'E ovit 2'5 ows siw sih bable-1s9qz6 und OYL beilon zi si nefis sib oris to obiż got er noen 091) In add no owal 918 2worowreel 1) Xto noutodidah yildadong di wod jahan f. Find P(x<71)
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