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 22:50
On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table
Answers: 1
Mathematics, 21.06.2019 23:40
The function f(x)= -(x+5)(x+1) is down. what is the range of the function?
Answers: 3
Abaseball weighs 5 ounces. how much do 6 baseballs weigh?...
Mathematics, 13.03.2020 19:19
Mathematics, 13.03.2020 19:19
Mathematics, 13.03.2020 19:19
Computers and Technology, 13.03.2020 19:19
Computers and Technology, 13.03.2020 19:19