Mathematics, 30.11.2021 02:50 TheViperMlg23676
Identify the sampling method used: A random sample of 10 people from each of three different age categories were selected and asked how they would rate a new television show.
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 20:40
Lines a and b are parallel. what is the value of x? -5 -10 -35 -55
Answers: 2
Identify the sampling method used:
A random sample of 10 people from each of three different age c...
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