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
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![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)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1d698ecf-7efb-48ef-8d97-00ab1299fe37%2Fb7d9adc3-ac15-47aa-891d-7df75b6536f2%2Fsgwlzip_processed.jpeg&w=3840&q=75)
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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