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Author Question: The following data represents the actual talk time, in hours, for the Samsung smartphone for 11 ... (Read 49 times)

audragclark

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  • Posts: 579
on: Jun 24, 2018
The following data represents the actual talk time, in hours, for the Samsung smartphone for 11 users.25.1 19.1 21.6 9.5 20.3 18.0 24.6 25.2 21.9 29.7 28.5
 
  What percentile is the talk time of 21.6 hours?
  A) 41st
  B) 49th
  C) 54th
  D) 58th

Question 2

DLP projectorsare used in the majority of cinema projection systems and require a special light bulb to display a picture. Assume that the average life of a DLP bulb is 2,000 hours and that this failure time follows the exponential distribution.
 
  What is the probability that a randomly selected bulb will last more than 2,500 hours?A) 0.1365
  B) 0.2031
  C) 0.2865
  D) 0.4492
Business Statistics ¦ Donnelly ¦ 2nd Edition
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momtoalll

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Reply #1 on: Jun 24, 2018
Answer to Question 1

A

Answer to Question 2

C


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