Answers: 2
Mathematics, 21.06.2019 19:40, evarod
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, 22.06.2019 03:50, xelynncaldera
This stem-and-leaf plot represents the heights of the students on ralph’s basketball team. one student’s height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.
Answers: 1
Mathematics, 22.06.2019 04:30, fansofboys
Whats the area of a square is 16 cm square. the square is the base of a cube. what is the surface area of the a. 16cm2 b. 32cm2 c. 64cm2 d. 96cm2
Answers: 2
Write 19/25 in decimal form....
Mathematics, 27.04.2021 16:50
Chemistry, 27.04.2021 16:50
Mathematics, 27.04.2021 16:50