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, 20.06.2019 18:04
If f(x)=2x^6+x^2+2 then what is the remainder when f(x)is divided by x+2
Answers: 1
Mathematics, 21.06.2019 22:00
The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score
Answers: 1
Mathematics, 21.06.2019 22:30
Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.
Answers: 1
Mathematics, 21.06.2019 23:30
The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.
Answers: 3
Industrial engineers who specialize in ergonomics are concerned with designing workspace
and device...
Social Studies, 10.07.2019 17:50
History, 10.07.2019 17:50
Biology, 10.07.2019 17:50
Chemistry, 10.07.2019 17:50
Biology, 10.07.2019 17:50
Mathematics, 10.07.2019 17:50
Social Studies, 10.07.2019 17:50
Mathematics, 10.07.2019 17:50
Mathematics, 10.07.2019 17:50
History, 10.07.2019 17:50
Chemistry, 10.07.2019 17:50