The table shows the credit scores for 12 randomly selected adults who are considered high risk...
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The table shows the credit scores for 12 randomly selected adults who are considered high risk barrowers before and two years after they attend a personal finance seminar. 1 2 34 5 6 7 8 9 10 11 608 620 610 650 640 680 655 602 644 656 632 664 12 646 692 715 669 725 786 700 650 660 650 680 702 Adult Credit score (before seminar) Credit score (after seminar) Based on the information provided in the output below answer following questions: t-Test: Paired Two Sample for Means Mean Variance Observations Pearson Correlation Hypothesized Mean Difference df t Stat P(T<=t) one-tail t Critical one-tail P(T<=t) two-tail t Critical two-tail Variable 1 638.417 597.720 12 0.509 0 11 5.073 0.000 2.718 0.000 3.106 a. Identify the claim and state null and alternative hypothesis. b. What are the degrees of freedom? e. Find the critical value and identify the rejection region. d. Find the standardized test statistic. Variable 2 689.583 1626.265 12 e. At 1% significance level, decide whether to reject or fail to reject the null hypothesis. f. Interpret the decision in the context of the original claim. (At 1 % significance level, is there enough evidence to support the claim that the personal finance seminar helps adults increase their credit scores?) The table shows the credit scores for 12 randomly selected adults who are considered high risk barrowers before and two years after they attend a personal finance seminar. 1 2 34 5 6 7 8 9 10 11 608 620 610 650 640 680 655 602 644 656 632 664 12 646 692 715 669 725 786 700 650 660 650 680 702 Adult Credit score (before seminar) Credit score (after seminar) Based on the information provided in the output below answer following questions: t-Test: Paired Two Sample for Means Mean Variance Observations Pearson Correlation Hypothesized Mean Difference df t Stat P(T<=t) one-tail t Critical one-tail P(T<=t) two-tail t Critical two-tail Variable 1 638.417 597.720 12 0.509 0 11 5.073 0.000 2.718 0.000 3.106 a. Identify the claim and state null and alternative hypothesis. b. What are the degrees of freedom? e. Find the critical value and identify the rejection region. d. Find the standardized test statistic. Variable 2 689.583 1626.265 12 e. At 1% significance level, decide whether to reject or fail to reject the null hypothesis. f. Interpret the decision in the context of the original claim. (At 1 % significance level, is there enough evidence to support the claim that the personal finance seminar helps adults increase their credit scores?)
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a The claim is that attending a personal finance seminar helps adults increase their credit ... View the full answer
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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