jabrony

Composite ACT Scores Non-Athletes Athletes 25 21 22 22 27 21 19 29 24 25 26 27 24 30 19 25 27 23 24 26 17 23 23 a. Test an appropriate hypothesis and state your conclusion. Use alpha = .05 for your test. Show the null and alternative hypothesis, the p-val...

Before 33 33 38 33 35 35 40 40 40 31 After 34 28 25 28 35 33 31 28 35 33 Ten different families are tested for the number of gallons of water per day they use before and after viewing a conservation video. Construct a 90% confidence interval for the mean...

Gender Math M 690 M 550 F 800 F 610 M 540 F 660 M 700 M 560 F 560 M 390 F 530 M 560 F 590 F 520 M 740 F 560 M 620 M 700 M 620 F 500 M 760 F 710 M 590 M 670 M 670 a. Determine whether the sample provides statistical evidence that males have higher Math sco...

if i have x^2 = 15.505 and 9 degrees of freedom and a significance level of .10 how do i figure out the p value on my calculator?

if i have x^2 = 20.303 with 9 degrees of freedom and a significance level of .05 how do i figure out the P-value and by X^2 i mean chi square

SO FAR I HAVE 9.63 FOR THE 1ST 2 COLUMNS AND 7.56 FOR LAST COLUMN FOR THE VARIANCES. I GOT Z= .0875 SEDIFF =1.2364 SEm=.6019 for 1st set of #s and SEm=1.08 for 2nd set of #s is that correct and now what?