Mathematics, 28.05.2021 22:00 arnold2619
Industrial engineers who specialize in ergonomics are concerned with designing workspace
and devices operated by workers so as to achieve high productivity and comfort. The article “Studies on Ergonomically Designed Alphanumeric Keyboards” (Hum. Factors, 1985:
175-187) reports on a study of preferred height for an experimental keyboard with large
forearm-wrist support. A sample of n = 31 trained typists was selected, and the preferred
keyboard height was determined for each typist. The resulting sample average preferred
height was ¯x = 80 cm. Assuming that the preferred height is normally distributed with
σ = 2.0 cm (a value suggested by data in the article), obtain a CI for µ, the true average
preferred height for the population of all experienced typists.
Answers: 2
Mathematics, 21.06.2019 15:40
He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?
Answers: 1
Mathematics, 21.06.2019 19:10
What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)
Answers: 3
Industrial engineers who specialize in ergonomics are concerned with designing workspace
and device...
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