Answers: 2
Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
Mathematics, 21.06.2019 21:00
Hurrya vegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide if one bag of gravel covers 9 square feet how many bags are needed to cover the path
Answers: 1
Mathematics, 21.06.2019 21:30
Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?
Answers: 1
Mathematics, 21.06.2019 23:50
What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet
Answers: 1
875 divided by 7 equals...
Physics, 10.11.2020 19:00
History, 10.11.2020 19:00
Mathematics, 10.11.2020 19:00
Biology, 10.11.2020 19:00
Mathematics, 10.11.2020 19:00
Biology, 10.11.2020 19:00
English, 10.11.2020 19:00
Biology, 10.11.2020 19:00
Mathematics, 10.11.2020 19:00
Mathematics, 10.11.2020 19:00
Geography, 10.11.2020 19:00