Mathematics, 02.07.2019 04:00 carlinryan
The difference of sample means of two populations is 55.4, and the standard deviation of the difference of sample means is 28.1. which statement is true if we are testing the null hypothesis at the 95% confidence level? medals 0 answer choices: the difference of the two means is significant, so the null hypothesis must be rejected. the difference of the two means is significant, so the null hypothesis must be accepted. the difference of the two means is not significant, so the null hypothesis must be rejected. the difference of the two means is not significant, so the null hypothesis must be accepted.
Answers: 1
Mathematics, 21.06.2019 22:20
(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)
Answers: 2
Mathematics, 22.06.2019 06:50
What is the equation of a line, in general form, that passes through point (1, -2) and has a slope of 1/3 3x - y - 7 = 0 x - 3y + 7 = 0 x - 3y - 7 = 0
Answers: 1
The difference of sample means of two populations is 55.4, and the standard deviation of the differe...
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