45456346456546546546
Step-by-step explanation:
B and D are both rational.
A rational number is a number that can be represented as a ratio fo two integers.
-7/3 is rational because both -7 and 3 are integers. 2.777... equals 25/9. 25 and 9 are both rational numbers.
Answer:
Step-by-step explanation:
Given that for a repeated measures study comparing two treatment conditions, an experiment was conducted.
n=9: Mean difference =4:
Variance = s^2 =36
Std error = 
t statistic = Mean diff/SE
= 
30 hours. Multiply $8.10 by 40 to get $324. Divide $324 by $10.80 to get 30 hours.