Question

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. 43 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.

What is the distribution of X ? X ~ N( 4.9 Correct, 0.8 Correct)

What is the distribution of ¯ x ? ¯ x ~ N( 4.9 Correct, .1220 Correct)

What is the distribution of ∑ x ? ∑ x ~ N( 210.70000 Correct, 5.2460 Correct)

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. .0490 Correct

For the 43 workers, find the probability that their average number of computers put together per hour is between 4.7 and 4.8. Incorrect

Find the probability that a 43 person shift will put together between 206.4 and 210.7 computers per hour. Incorrect

For part e) and f), is the assumption of normal necessary? YesNoCorrect

A sticker that says "Great Dedication" will be given to the groups of 43 workers who have the top 20% productivity. What is the least total number of computers produced by a group that receives a sticker? Incorrectminutes (round to the nearest computer)

** I only need help with e, f, and h.

Answer 1