Please help asap i will mark brainliest if your answer is correct
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Mathematics, 14.04.2020 20:53 kathysanchezz26
Please help asap i will mark brainliest if your answer is correct
Answers: 3
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 22:30
Which of the following represents the length of a diagonal of this trapezoid?
Answers: 1
Mathematics, 22.06.2019 04:30
Arandom sample of 15 observations is used to estimate the population mean. the sample mean and the standard deviation are calculated as 172 and 63, respectively. assume that the population is normally distributed. a. with 99 confidence, what is the margin of error for the estimation of the population mean? b. construct the 99% confidence interval for the population mean. c. construct the 95% confidence interval for the population mean. d. construct the 83% confidence interval for the population mean. hint: you need to use excel function =t.inv.2t to find the value of t for the interval calculation.
Answers: 1
Mathematics, 22.06.2019 05:30
Arecipe calls for 3 ounces of flour for every 2 ounces of sugar. find the constant of proportionality.
Answers: 1
English, 08.11.2019 21:31
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History, 08.11.2019 21:31
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Social Studies, 08.11.2019 21:31