ABC Personal Finance company markets its personal finance seminar to adults who are considered high-risk borrowers. The company claims its seminar helps adults increase their credit scores. A random sample of adults who took the seminar was taken, and their credit scores before, and two years after the seminar were collected. Does this data show the company’s seminar helps adults increase their credit score? Test at the .01 level of significance. Assume credit scores are normally distributed.

 

Transcribed Image Text:

Adult: Before: After: 1 2 620 608 646 692 3 610 715 4 650 669 5 640 725 6 680 786 7 655 700 8 9 602 644 650 660 10 656 650 Adult: Before: After: 1 2 620 608 646 692 3 610 715 4 650 669 5 640 725 6 680 786 7 655 700 8 9 602 644 650 660 10 656 650

Answer rating: 100% (QA)

SOLUTION To determine if the seminar helps adults increase their credit scores we can perform a paired ttest on the data The null hypothesis H0 is that there is no significant difference in credit sco... View the full answer