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Each sweat shop worker at a computer factory can put together 4.9 computers per hour on average with a standard deviation of 0.8 computers. 47 workers are randomly selected to work the next shift at the factory. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X ~ N( b. What is the distribution of æ? x ~ N( c. What is the distribution of x? r ~ N(

Each sweat shop worker at a computer factory can put together 4.9 computers per hour on average with a standard deviation of 0.8 computers. 47 workers are randomly selected to work the next shift at the factory. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X ~ N( b. What is the distribution of æ? x ~ N( c. What is the distribution of x? r ~ N(

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Each sweat shop worker at a computer factory can put together 4.9 computers per hour on average with a standard deviation of 0.8 computers. 47 workers are randomly selected to work the next shift at the factory. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X ~ N( b. What is the distribution of æ? x ~ N( c. What is the distribution of >: Σ x? x - N( d. If one randomly selected worker is observed, find the probability that this worker will put together between 4.7 and 4.8 computers per hour. e. For the 47 workers, find the probability that their average number of computers put together per hour is between 4.7 and 4.8. f. Find the probability that a 47 person shift will put together between 220.9 and 225.6 computers per hour. g. For part e) and f), is the assumption of normal necessary? h. A sticker that says "Great Dedication" will be given to the groups of 47 workers who have the top 20% productivity. What is the least total number of computers produced by a group that No Yes receives a sticker? computers per hour (round to the nearest computer)
Transcribed Image Text:Each sweat shop worker at a computer factory can put together 4.9 computers per hour on average with a standard deviation of 0.8 computers. 47 workers are randomly selected to work the next shift at the factory. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X ~ N( b. What is the distribution of æ? x ~ N( c. What is the distribution of >: Σ x? x - N( d. If one randomly selected worker is observed, find the probability that this worker will put together between 4.7 and 4.8 computers per hour. e. For the 47 workers, find the probability that their average number of computers put together per hour is between 4.7 and 4.8. f. Find the probability that a 47 person shift will put together between 220.9 and 225.6 computers per hour. g. For part e) and f), is the assumption of normal necessary? h. A sticker that says "Great Dedication" will be given to the groups of 47 workers who have the top 20% productivity. What is the least total number of computers produced by a group that No Yes receives a sticker? computers per hour (round to the nearest computer)
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