When testing for the difference between the means of two independent populations with equal variances and with samples of sizes n1 = 20 and n2 = 20,what is the number of degrees of freedom?
A) 40
B) 38
C) 20
D) 19
Correct Answer:
Verified
Q14: If testing for the difference between the
Q15: What is the pooled variance?
A)3.650
B)5.201
C)13.525
D)12.849
Q16: What can the researcher conclude?
A)There is not
Q17: In what type of test is the
Q18: When testing for the difference between the
Q20: The t test for the difference between
Q21: What is the value of α,if the
Q22: THE NEXT QUESTIONS ARE BASED ON THE
Q23: What conclusion can be made about the
Q24: Consider a standard model with a random
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