Use the normal curve to find the indicated information for the given data. (You may find it helpful to draw a normal curve and label it.) The useful life of a certain battery is normally distributed with a mean of 328 hours and standard deviation of 4 hours. A company has 500 of these batteries on hand. 26. What percentage of the batteries will last at least 336 hours? 27. What percentage of the batteries will last at most 328 hours? 28. What percentage of the batteries will last between 320 and 332 hours? Choices for 26-28: A) 2.5% D) 68% AC) 50% BC) 99.7% B) 97.5% E) 83.85% AD) 95% BD) 81.5% C) 16% AB) 84% AE) 49.85% BE) 47.5%
Use the normal curve to find the indicated information for the given data. (You may find it helpful to draw a normal curve and label it.) The useful life of a certain battery is normally distributed with a mean of 328 hours and standard deviation of 4 hours. A company has 500 of these batteries on hand. 26. What percentage of the batteries will last at least 336 hours? 27. What percentage of the batteries will last at most 328 hours? 28. What percentage of the batteries will last between 320 and 332 hours? Choices for 26-28: A) 2.5% D) 68% AC) 50% BC) 99.7% B) 97.5% E) 83.85% AD) 95% BD) 81.5% C) 16% AB) 84% AE) 49.85% BE) 47.5%
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
26,27,28
Transcribed Image Text:Use the normal curve to find the indicated information for the given data. (You may find it
helpful to draw a normal curve and label it.)
The useful life of a certain battery is normally distributed with a mean of 328 hours and
standard deviation of 4 hours. A company has 500 of these batteries on hand.
26. What percentage of the batteries will last at
least 336 hours?
27. What percentage of the batteries will last at
most 328 hours?
28. What percentage of the batteries will last
between 320 and 332 hours?
29. How many of the batteries will last less than
324 hours? (Round to nearest whole number.)
30. How many of the batteries will last longer than
332 hours? (Round to nearest whole number.)
31. How many of the batteries will last between
324 and 340 hours? (Round to nearest whole
number.)
GSE Algebra IIB Week 13
Page 17 of 21
Choices for 26-28:
A) 2.5%
D) 68%
AC) 50%
BC) 99.7%
B) 97.5%
E) 83.85%
AD) 95%
BD) 81.5%
Choices for 29-31:
A) 419
D) 475
AC) 340
BC) 499
B) 13
E) 249
AD) 408
BD) 488
C) 16%
AB) 84%
AE) 49.85%
BE) 47.5%
C) 250
AB) 80
AE) 420
BE) 238
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