Mathematics, 23.11.2019 02:31 lovelyheart5337
In a 21 element sample, the sample mean is equal tox-bar=10; the standard error of the mean is equal to 5. if the two-tailed combined proportions for the 90% confidence interval for the true mean is either t0.10,20 = 1.725 or t0.05,20 = 2.086, what are the limits of the confidence interval?
Answers: 2
Mathematics, 21.06.2019 18:20
Find the solution of this system of equation -7x+y=-20 9x-3y=36
Answers: 1
Mathematics, 21.06.2019 18:30
The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truckββ$80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?
Answers: 1
Mathematics, 21.06.2019 20:00
Given the equation y β 4 = three fourths(x + 8) in point-slope form, identify the equation of the same line in standard form. βthree fourthsx + y = 10 3x β 4y = β40 y = three fourthsx + 12 y = three fourthsx + 10
Answers: 1
In a 21 element sample, the sample mean is equal tox-bar=10; the standard error of the mean is equa...
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