The time taken by employees at Grace Floral shop to put a bouquet together has a normal distribution with mean 26.4 minutes and standard deviation 0.8 minutes.   Find the probability that an employee chosen at random takes between 24.6 and 27.8 minutes to put a bouquet together.   12% of employees take more than t minutes to put a bouquet together. Find the value of t.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The time taken by employees at Grace Floral shop to put a bouquet together has a normal distribution with mean 26.4 minutes and standard deviation 0.8 minutes.

 

  • Find the probability that an employee chosen at random takes between 24.6 and 27.8 minutes to put a bouquet together.

 

  • 12% of employees take more than t minutes to put a bouquet together. Find the value of t.
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