Mathematics, 23.11.2019 05:31 Shlabo
The number of wiring packages that can be assembled by a company's employees has a normal distribution, with a mean equal to 19.8 per hour and a standard deviation of 1.2 per hour.
(a) what are the mean and standard deviation of the number x of packages produced per worker in an 8-hour day? (round your standard deviation to three decimal places.)
a. mean
b. standard deviation
(b) do you expect the probability distribution for x to be mound-shaped and approximately normal? explain.
choose
a. yes, since the standard deviation is less than 3, the sampling distribution of the sum will be approximately normal.
b. yes, since the original population is normal, the sampling distribution of the sum will also be approximately normal.
c. no, since the original population is not normal, the sampling distribution of the sum will not be approximately normal.
d. no, since the original population is normal, the sampling distribution of the sum cannot be normal.
e. no, since the standard deviation is more than 3, the sampling distribution of the sum will not be approximately normal.
(c) what is the probability that a worker will produce at least 160 packages per 8-hour day? (round your answer to four decimal places.)
Answers: 1
Mathematics, 21.06.2019 17:30
8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals
Answers: 1
Mathematics, 21.06.2019 17:40
The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.
Answers: 2
Mathematics, 21.06.2019 18:50
The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3
Answers: 1
Mathematics, 21.06.2019 21:10
Jenny earned a 77 on her most recent test jenny score is no less then 5 points greater then 4/5 of terrance’s score if t represents terrance score which inequality represents the situation
Answers: 3
The number of wiring packages that can be assembled by a company's employees has a normal distributi...
Mathematics, 23.04.2020 18:21
History, 23.04.2020 18:21
History, 23.04.2020 18:21
Physics, 23.04.2020 18:22
History, 23.04.2020 18:22
Law, 23.04.2020 18:22
Mathematics, 23.04.2020 18:22