random sample of 60 children from low income families and found that these

Random sample of 60 children from low income families

This preview shows page 2 out of 2 pages.

random sample of 60 children from low-income families and found that these children were exposed to a sample mean of 4.5 hours of daily background television. A. Develop hypothesis that can be used to test your research hypothesis. B. Based on a previous study, you are willing to assume that the population standard deviation is σ = 1.5 hours. What is the p-value based on your sample of 60 children from low-income families? C. Use α =0.01 as the level of significance. What is your conclusion ? 4.) An extensive study of the cost of health care in the United States presented data showing that the mean spending per Medicare enrollee in 2003 was $6883. To investigate differences across the country, a researcher took a sample of 40 Medicare enrollees in Indianapolis. For the Indianapolis sample, the mean 2003 Medicare spending was $5980 and the standard deviation was $2518. A. State the hypotheses that should be used if we would like to determine whether the mean annual Medicare spending in Indianapolis is lower than the national mean. B. Use the preceding sample results to compute the test statistic and the p-value. C. Use α =0.05. What is your conclusion? D. Repeat the hypothesis test using the critical value approach.
Image of page 2

You've reached the end of your free preview.

Want to read both 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

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors