Mathematics, 29.10.2019 18:31 jeremiaht7
Harold took five different samples of thirty-five randomly selected students from the 520 students he surveyed. the means of the samples are shown below. sample mean sample 1 3.4 sample 2 3.2 sample 3 4.1 sample 4 4.6 sample 5 3.1 the predicted mean of the population will fall between 3.1 and 1.5 3.4 3.7 4.6
Answers: 1
Mathematics, 21.06.2019 15:00
If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?
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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 22:00
Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?
Answers: 1
Harold took five different samples of thirty-five randomly selected students from the 520 students h...
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