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Student's Name:
Homework Identification Number:
0621
MINITAB Assignment 5
No handwritten work will be accepted for any MINITAB Assignment!
1. Suppose the talk time in digital mode until the battery no longer
operates the phone for a certain model of cell phone is normally
distributed with mean 289.7 minutes and standard deviation 22.7
minutes.
a) Find the probability that a fully charged battery will last less
than 257.0 minutes.
Copy all the commands you used and the response from MINITAB from the
session window into this document after this sentence.
Type your answer after this paragraph. Please use complete, coherent
sentences.
b) Find the probability that a fully charged battery will last at least
268.4 minutes.
Copy all the commands you used and the response from MINITAB from the
session window into this document after this sentence.
Type your answer after this paragraph. Please use complete, coherent
sentences.
c) If we had a very large population of these batteries, about what
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 Spring '08
 sims

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