Mathematics, 26.10.2019 04:43 dnarioproctor
a) if the null hypothesis is true, you'll get a high p-value. b) if the null hypothesis is true, a p-value of 0.01 will occur about 1% of the time. c) a p-value of 0.90 means that the null hypothesis has a good chance of being true. d) a p-value of 0.90 is strong evidence that the null hypothesis is true.
Answers: 3
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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
a) if the null hypothesis is true, you'll get a high p-value. b) if the null hypothesis is true, a p...
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