HW_Week8a.docx

HW_Week8a.docx - UMUC STAT-200 Homework Dr Brian Killough...

• Homework Help
• 4

This preview shows pages 1–2. Sign up to view the full content.

UMUC STAT-200 Homework Week #8 Dr. Brian Killough The assignment must be completed before the start of the Final Exam on Thursday at midnight. Lane – Chapter 15 Illowsky – Chapter 13 Problem #1 (40 points) Suppose a group is interested in determining whether teenagers obtain their drivers licenses at approximately the same average age across the country. Suppose that the following data are randomly collected from five teenagers in each region of the country. The numbers represent the age at which teenagers obtained their drivers licenses. The null hypothesis is all group means are equal. The alternate hypothesis is that any two group means are not equal. Northea st South West Central East 16.3 16.9 16.4 16.2 17.1 16.1 16.5 16.5 16.6 17.2 16.4 16.4 16.6 16.5 16.6 16.5 16.2 16.1 16.4 16.8 Mea n 16.325 16.5 16.4 16.425 16.925 Varia nce 0.02916 6667 0.08666 6667 0.04666 6667 0.02916 6667 0.07583 3333 Find the F-statistic using an ANOVA table. In order to receive full credit, you need to show your values of group mean and group variance (table above), grand mean (below), and all of the values in the ANOVA table (below).

This preview has intentionally blurred sections. Sign up to view the full version.

This is the end of the preview. Sign up to access the rest of the document.
• Fall '09
• Variance, Null hypothesis, 10%, Statistical hypothesis testing, Dr. Brian Killough

{[ snackBarMessage ]}

What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern