SOLUTION: 10.52 One group of accounting students took a distance learning class, while another group took the same course in a traditional classroom. At α = .10, is there a significant
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Question 175565This question is from textbook Applied Statistics in Business and Economics
: 10.52 One group of accounting students took a distance learning class, while another group took the same course in a traditional classroom. At α = .10, is there a significant difference in the mean scores listed below? (a) State the hypotheses. (b) State the decision rule and sketch it. (c) Find the test statistic. (d) Make a decision. (e) Use Excel to find the p-value and interpret it.
Exam Scores for Accounting Students
Statistic Distance Classroom
Mean scores ¯x1 = 9.1 ¯x2 = 10.3
Sample std. dev. s1 = 2.4 s2 = 2.5
Number of students n1 = 20 n2 = 20 This question is from textbook Applied Statistics in Business and Economics
You can put this solution on YOUR website! One group of accounting students took a distance learning class, while another group took the same course in a traditional classroom. At α = .10, is there a significant difference in the mean scores listed below?
(a) State the hypotheses.
Ho: u1 = u2
Ha: u1 is not equal to u2
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(b) State the decision rule and sketch it.
Critical value for 2-tail Z-test with alpha=0.10 is +/-1.645
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(c) Find the test statistic.
z(9.1-10.3) = -1.5485
(d) Make a decision.
Fail to Reject Ho.
(e) Use Excel to find the p-value and interpret it.
p-value = 0.1215
At least 12.15% of test results could have provided stronger
evidence for rejecting Ho.
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Note: I used a 2-Sample ZTest on a TI-83 calculator to get these results.
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Cheers,
Stan H.
Exam Scores for Accounting Students
Statistic Distance Classroom
Mean scores ¯x1 = 9.1 ¯x2 = 10.3
Sample std. dev. s1 = 2.4 s2 = 2.5
Number of students n1 = 20 n2 = 20
(