Mathematics, 11.03.2021 19:20 saguil3388
Say youre going to conduct a t procedure for the difference between the means of two populations. You decide the samples of sizes 12 and 15 are independent. Which of the following statements are true?
1. If we pool variances the number of degrees of freedom is 25.
2. If we don't pool and we don't have access to software to compute the degrees of freedom the number of degrees of freedom is 11.
3. For a given level of confidence c a confidence interval based on 11 degrees of freedom will be wider than one based on 25 degrees of freedom.
Answers: 3
Mathematics, 21.06.2019 14:00
In the diagram, the measure of angle 9 is 85Β° which angle must also measure 85Β°?
Answers: 3
Mathematics, 21.06.2019 19:00
Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4
Answers: 2
Mathematics, 21.06.2019 21:00
X+y=-4 x-y=2 use elimination with adding and subtraction
Answers: 3
Say youre going to conduct a t procedure for the difference between the means of two populations. Yo...
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