e Given that if 15 \u00de f Since then the variation not due to g i State the

E given that if 15 þ f since then the variation not

This preview shows page 20 - 22 out of 22 pages.

e. Given that ࠵? = ࠵?. ࠵?࠵?࠵? + ࠵?.࠵?࠵?࠵?࠵? , if ࠵? = 15 ࠵? = ࠵?.࠵?࠵?࠵? + ࠵?. ࠵?࠵?࠵?(࠵?࠵?) ࠵? = ࠵?࠵?.࠵?࠵?࠵? Þ
Image of page 20
f. Since ࠵? ࠵? = ࠵?.࠵?࠵?࠵?࠵? , then the variation not due to ࠵? = ࠵? − ࠵? ࠵? = ࠵? − ࠵?.࠵?࠵?࠵?࠵? = ࠵?.࠵?࠵?࠵?࠵? = ࠵?.࠵?࠵?% g. (i) State the hypothesis ࠵? G : ࠵? = 0 ࠵? H : ࠵? ≠ 0 (ii) Choose the level of significance ࠵? = ࠵?. ࠵?࠵? (iii) Find the test statistic ࠵? yWz = ࠵? − ࠵? { 1 − ࠵? 7 ࠵? − 2 ࠵? yWz = 0.9495 − 0 { 1 − 0.9016 10 − 2 ࠵? yWz = 0.9495 { 0.0984 8 ࠵? ࠵?࠵?࠵? = ࠵?.࠵?࠵?࠵?
Image of page 21
(iv) Find the critical values l 7 = G.GH 7 = 0.005 ࠵?࠵? = ࠵? − 2 = 10 − 2 = 8 ࠵? ࠵?࠵?࠵? = ࠵?. ࠵?࠵?࠵? (v) Decision ࠵?࠵?࠵?࠵?࠵? |࠵? yWz | = 8.561 > 3.355 = ࠵? ~WY , we reject the null hypothesis at 1% significance level Conclusion: We are 99% confident that there is a relationship between X and Y.
Image of page 22

You've reached the end of your free preview.

Want to read all 22 pages?

What students are saying

  • Left Quote Icon

    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.

    Student Picture

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

  • Left Quote Icon

    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.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    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.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

A+ icon
Ask Expert Tutors You can ask 0 bonus questions You can ask 5 questions (5 expire soon) You can ask 5 questions (will expire )
Answers in as fast as 15 minutes