Answers: 1
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 20:50
These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?
Answers: 2
Mathematics, 22.06.2019 06:40
In a gallup poll, 750 randomly selected adults were asked whether they are in favor of the death penalty for a person convicted of murder, and 75% of them said that they were in favor. construct and interpret a 99% confidence interval of the percentage of all adults who are in favor of this death penalty. round to 2 decimals.
Answers: 1
Which even number is formed when 3 odd numbers are added...
SAT, 16.02.2020 16:01
Mathematics, 16.02.2020 16:01
Mathematics, 16.02.2020 16:11
English, 16.02.2020 16:16
Mathematics, 16.02.2020 16:16
Mathematics, 16.02.2020 16:16
Mathematics, 16.02.2020 16:20
World Languages, 16.02.2020 16:32
English, 16.02.2020 16:46
English, 16.02.2020 16:47
Mathematics, 16.02.2020 16:47
Social Studies, 16.02.2020 16:48