Question: Data Set 24 in Appendix B includes a simple random sample of FICO credit rating scores. As of this writing, the mean FICO score was

Data Set 24 in Appendix B includes a simple random sample of FICO credit rating scores. As of this writing, the mean FICO score was reported to be 678. Use a 0.05 signficance level to test the claim that the sample of FICO scores comes from a population with a mean equal to 678.

Data Set 24: FICO Credit Rating Scores The FICO scores are credit

Data Set 24: FICO Credit Rating Scores The FICO scores are credit rating scores based on the model devel- oped by Fair Isaac Corporation, and are based on data from Experian. STATDISK: Minitab: Excel: TI-83/84 Plus: Text file names: 797 793 559 598 693 743 444 714 636 637 497 818 654 617 849 850 591 802 756 689 789 782 760 503 784 591 696 638 635 795 519 829 744 752 783 630 706 594 664 782 579 Data set name is FICO. Worksheet name is FICO.MTW. Workbook name is FICO.XLS. App name is FICO, and the file name is the same as for the text file. Text file name is FICO. 708 713 781 809 698 836 768 532 657 745 681 714 517 787 579 618 830 711 681 741 792 502 739 768 611 701 753 755 835 797 568 798 751 628 692 834 694 682 824 753 661 796 611 779 795 660 603 709 604 709 729 697 714 731 756 651 777 722 732

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