Each sweat shop worker at a computer factory can put together 4 computers per hour on average with a standard deviation of 0.7 computers. 18 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 ? - N( c. What is the distribution of a? - N d. If one randomly selected worker is observed, find the probability that this worker will put together between 3.8 and 4 computers per hour. e. For the 18 workers, find the probability that their average number of computers put together per hour is between 3.8 and 4. f. Find the probability that a 18 person shift will put together between 70.2 and 73.8 computers per hour.

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Part d, e and f

Each sweat shop worker at a computer factory can put together 4 computers per hour on average with a
standard deviation of 0.7 computers. 18 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 ? - N(
С.
c. What is the distribution of x? ) a - N(
d. If one randomly selected worker is observed, find the probability that this worker will put together
between 3.8 and 4 computers per hour.
e. For the 18 workers, find the probability that their average number of computers put together per hour
is between 3.8 and 4.
f. Find the probability that a 18 person shift will put together between 70.2 and 73.8 computers per hour.
g. For part e) and f), is the assumption of normal necessary? O Yes No
h. Asticker that says "Great Dedication" will be given to the groups of 18 workers who have the top 10%
productivity. What is the least total number of computers produced by a group that receives a sticker?
minutes (round to the nearest computer)
Hint:
Some Helpful Videos:
• Finding the Sampling Distribution [+]
• Finding a Probability Using the Central Limit Theorem [+]
Finding Value Given a Probability Using the Central Limit Theorem [+]
• The Central Limit Theorem For Sums [+
Hint
Rasmusse RC
Transcribed Image Text:Each sweat shop worker at a computer factory can put together 4 computers per hour on average with a standard deviation of 0.7 computers. 18 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 ? - N( С. c. What is the distribution of x? ) a - N( d. If one randomly selected worker is observed, find the probability that this worker will put together between 3.8 and 4 computers per hour. e. For the 18 workers, find the probability that their average number of computers put together per hour is between 3.8 and 4. f. Find the probability that a 18 person shift will put together between 70.2 and 73.8 computers per hour. g. For part e) and f), is the assumption of normal necessary? O Yes No h. Asticker that says "Great Dedication" will be given to the groups of 18 workers who have the top 10% productivity. What is the least total number of computers produced by a group that receives a sticker? minutes (round to the nearest computer) Hint: Some Helpful Videos: • Finding the Sampling Distribution [+] • Finding a Probability Using the Central Limit Theorem [+] Finding Value Given a Probability Using the Central Limit Theorem [+] • The Central Limit Theorem For Sums [+ Hint Rasmusse RC
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