it is Known that a company completes a certain type of order in average of 30 minutes with a standard deviation of 15 minutes, and that for a second type need 24 minutes long with a standard deviation of 20 minutes. If a manger randomly observes 3 from the first type and 40 fromn the second type, what is the probability that the average time to complete the task of the type 1 will be more than 20 minutes from the type 2? 0.3121 0.9654 0.0003 0.1093

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
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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Suppose it is known that a company completes a certain type of order in average of 30
minutes with a standard deviation of 15 minutes, and that for a seeond type need 24
minutes long with a standard deviation of 20 minutes. Ifa manger randomly observes 35
from the first type and 40 from the second type, what is the probability that the average
time to complete the fask of the type 1 willl be more than 20 mimutes lrom the type 22
O 0.3121E
O 0.9654
O 0.0003
0.1093
O 0 0 0
Transcribed Image Text:Suppose it is known that a company completes a certain type of order in average of 30 minutes with a standard deviation of 15 minutes, and that for a seeond type need 24 minutes long with a standard deviation of 20 minutes. Ifa manger randomly observes 35 from the first type and 40 from the second type, what is the probability that the average time to complete the fask of the type 1 willl be more than 20 mimutes lrom the type 22 O 0.3121E O 0.9654 O 0.0003 0.1093 O 0 0 0
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