The Power of Approximate Tests for the Regression Coefficients in a Gamma Regression Model


     Related Videos
The National Ignition Facility Making Star Power on Earth - Edward Moses Discusses Laser P...
Harnessing the Power of the Gulf Stream for Alternative Ocean Energy Power
Harnessing the Power of the Gulf Stream for Alternative Ocean Energy Power
GRID TIE INVERTER SOLAR POWER EASY SOLAR SOLUTION POWER INVERTERS
Fusion Power / Fusion Energy - How will a fusion power plant work? - ITER - Max Planck Soc...

     Related Hubpages

    Field: Engineering  DOWNLOAD  BOOKMARK REPORT
    •  Doc. Url:    Embed Code: 

    • IEEE  status
      (0) (0 Votes)
      		Views: (2002)   Date: (Publication Date: June 1986)   Pages: ()

    • Author:  Al-Abood  Akram M. Young  David H. Brunel University  Uxbridge;  

    • Abstract:  Abstract A gamma regression model which has wide application in life-testing and analysis of point processes is considered. Approximate statistical tests for the regression coefficients based on maximum likelihood and weighted least squares fits of the model are considered. The power and significance level properties of the tests are evaluated for a model with a single regressor variate when the underlying gamma distributions have the same shape parameter. The tests give good control over the actual significance levels for all values of the shape parameter. The test using the maximum likelihood estimators has much better power than the test using the weighted least squares estimators for small values of the shape parameter but the power differences are negligible when the shape parameter exceeds five.

         Related Documents

           Related Groups

             Related Science News

             More on Sciencestage

             Answers

             News
        • The good and bad about GM earnings
          General Motors Co. earned $7.6 billion last year, the highest profit in company history.But some problems surfaced in the results, and GM executives say there's more work ahead. Here are GM's current strengths, ...
        • Curb the car dashboard technology, government asks
          Auto dashboards are becoming an arcade of text messages, GPS images, phone calls and web surfing, the government says, and it's asking carmakers to curb those distractions when vehicles are moving.
        • Kids' CT scans not on the rise: study
          NEW YORK (Reuters Health) - Contrary to previous research showing the number of CT scans done on children is rising, a new study finds use of the technology has leveled off and might even be declining -- at least in Georgia ERs. The radiation from CT scans carries a small risk of cancer, which has fueled concerns about overuse, particularly in kids. "If we're lucky, this publication does reflect ...
        • The U.S. foreclosure crisis, Beverly Hills-style
          BEVERLY HILLS (Reuters) - The careworn house not far from Santa Monica Boulevard resembles millions of other homes that have been foreclosed on since the calamitous U.S. housing crash four years ago. Garbage spews from trash bags behind the property. A smashed television leans against broken furniture. A filthy toy dog lies on its side, an ear draped across its face. The garden is overgrown. The ...
        • The Next Social Movement: Get Ready For The 99% Spring
          Our ears pricked up last week when Bob King, the president of the United Auto Workers, talked about a "new movement for social justice" that was in the works. Now we know what it is: The 99% Spring.
        • How politics inflame the 'spectrum crisis'
          The FCC's National Broadband Plan was supposed to add more spectrum for wireless data growth. Thanks to political infighting, the FCC has little to show for its efforts after the first two years. [Read more]
        • White protest ribbons all the rage for chic Russians
          MOSCOW (Reuters) - Fashion-conscious Soviets loved hard-to-find Levi's jeans in the 1980s, oligarchs of the 90s ushered in a passion for Bentley cars and stiletto heels from Dior, but these days all you need to be hip in Russia is a white ribbon and a little anger. Protesting for free and fair elections has consigned the bling thing to the vintage bin of history for now in Russia ahead of the ...
        • The Upside of Unplugging: Put Down the BlackBerry, Boost Productivity?
          Welcome to the new world of work, where 5:30 p.m. is far from the end of the day
        • Ahead of the Bell: Housing Starts
          Single-family home construction rose in each of the final three months of last year. The modest but steady gains helped boost confidence among builders after the worst year for single-family home construction on record.
        • Ahead of the Bell: Unemployment benefits
          Applications for unemployment benefits have fallen steadily in recent months to nearly a four-year low, and an expected increase in those numbers last week won't change that overall trend.

             Related on Wikipedia




























         

        Powered free by PHPmotion