QO A cty inctall: 5000 dectre lampa for street lighting The lamps come fram a different manufacturerand have a mean buming life of 1015 hourz We know from past experierce that the dutribution of burning ves approimate: a normal datributon. The 50 Tth lamp fals before 900 hout. Approximately what is the sondard deiaton di buming Ives for his set of lomps

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.1: Infinite Sequences And Summation Notation
Problem 73E
icon
Related questions
Question
100%
09 A cty inctall: 5000 dectric lamps for street lighting. The lamps come fram a different manufacurerand have a mean
burming life of 1015 hours We know fram past experierce that the diatribution of burning lve: approximate: a
normal dstribution. The 501th lamp fails before 900 houre. Approximately what is the sandard deviaton d buming
Ives for fis set of lamps
Transcribed Image Text:09 A cty inctall: 5000 dectric lamps for street lighting. The lamps come fram a different manufacurerand have a mean burming life of 1015 hours We know fram past experierce that the diatribution of burning lve: approximate: a normal dstribution. The 501th lamp fails before 900 houre. Approximately what is the sandard deviaton d buming Ives for fis set of lamps
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage