What can the researcher conclude?
A) There is not sufficient evidence to reject the null hypothesis;the population means and standard deviations are equal.
B) The two population means are equal but the standard deviations are different.
C) There is sufficient evidence to reject the null hypothesis and conclude that the two population means are different.
D) The answer cannot be determined without calculating the p-value and comparing it to the significance level.
Correct Answer:
Verified
Q11: Which of the following is an appropriate
Q12: When testing for the difference between the
Q13: What is the critical value(s)for this test?
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
Q17: In what type of test is the
Q18: When testing for the difference between the
Q19: When testing for the difference between the
Q20: The t test for the difference between
Q21: What is the value of α,if the
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