Answer:
c. The researcher must compute an estimated standard error for the mean difference score to compute a t statistic.
Step-by-step explanation:
As already defined that repeated-measures experiments measure the same set of research participants two or more times, while matched-subjects experiments study participants who are matched on one or more characteristics.
Both repeated-measures experiment and a matched-subjects experiment when used to compare two treatment conditions use the same t statistic. Therefore, researcher must compute an estimated standard error for the mean difference score to compute a t statistic.
Answer:
lcm (14,15)=210 and lcm (98,8)=392
Step-by-step explanation:
B because they’re closer in temp
<span>x^2 + y^2 + 8x – 6y + 21 = 0
x^2 + 8x +16 + y^2 -6y +9 = -21 + 16 +9
(x+4)^2 + (y-3)^2 = 4
So the radius is 2
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