Problem Solving: Work Sampling 1. A motorcycle company uses a conveyor belt in an assembly of a scooter. During 400 observations, the time analyst is planning to conduct a work sampling to estimate the amount of time that were lost. observed that the machine was working for 75% of the time. If at 95% probability and margin of error of 10%. a. Determine the exact number of observation the analyst should perform. Express your final answer to whole numbers. (eg: 10 observations) b. How many excess observations were made in this study? Express your final answer to whole numbers. (eq: 10 excess observations) c. If the observations was reduced to 32 observations. What will be the new margin of error? Express your final answer to whole numbers. (eq: 10%)
Problem Solving: Work Sampling 1. A motorcycle company uses a conveyor belt in an assembly of a scooter. During 400 observations, the time analyst is planning to conduct a work sampling to estimate the amount of time that were lost. observed that the machine was working for 75% of the time. If at 95% probability and margin of error of 10%. a. Determine the exact number of observation the analyst should perform. Express your final answer to whole numbers. (eg: 10 observations) b. How many excess observations were made in this study? Express your final answer to whole numbers. (eq: 10 excess observations) c. If the observations was reduced to 32 observations. What will be the new margin of error? Express your final answer to whole numbers. (eq: 10%)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
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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Transcribed Image Text:Problem Solving: Work Sampling
1. A motorcycle company uses a conveyor
belt in an assembly of a scooter. During
400 observations, the time analyst is
planning to conduct a work sampling to
estimate the amount of time that were
lost. observed that the machine was
working for 75% of the time. If at 95%
probability and margin of error of 10%.
a. Determine the exact number of observation
the analyst should perform. Express your final
answer to whole numbers. (eq: 10
observations)
b. How many excess observations were made
in this study? Express your final answer to
whole numbers. (eq: 10 excess observations)
c. If the observations was reduced to 32
observations. What will be the new margin of
error? Express your final answer to whole
numbers. (eg: 10%)
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