AaAaBbCcL AaB{ AaBbC AABBCCD AaBbCcI AaBbCcl AaBbCcC AaI. AEmphasis1 Heading 11 Heading 31 Heading 61 NormalStrongSubtitleParagraphStyles13.46.Q4. The Omantel firm has estimate the Sales of fibre internet connections in Oman with therelated to advertising expenditure made by the company over the past 26 months. Following isthe firm estimated results of the regression equation.DEPENDENT VARIABLE:YR-SQUAREF-RATIOP-VALUE ONFOBSERVATIONS: 260.851212128.7470.0187PARAMETERSTANDARDVARIABLEESTIMATEERRORT-RATIOP-VALUEINTERCEPT7.66.332321.2000.26439693.530.522280.0001428a. What is the dependent and independent variables in the above regression equation ofOmantel firm?b. Calculate the estimated t-ratio.c. Test the slope estimates for statistical significance at the 10 percent significance level.d. Interpret the coefficient of determination.с.5.2.

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Answered: Q4. The Omantel firm has estimate the…

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section: Chapter Questions

Problem 10T: Olympic Pole Vault The graph in Figure 7 indicates that in recent years the winning Olympic men’s...

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According to World Health Organization (WHO), the recommended limit for a noise level inside a classroom is 35 dBA. However, nine out of ten schools fail to meet this recommendation. A researcher wishes to conduct a study relevant to the prior information, but as a gap, he decides to include the area (in square meters) of every classroom and how it could possibly affect the resulting noise level. He selects 17 classrooms at random, and the noise levels are recorded in the next slide. a. Find the regression equation and construct the scatter plot diagram. b. Predict the noise level if a classroom has an area of 85.97 m2 . c. Calculate the coefficient of determination and interpret the findings. d. Calculate the coefficient of alienation and interpret the findings. Use Excel
The systolic blood pressure dataset (in the third sheet of the spreadsheet linked above) contains the systolic blood pressure and age of 30 randomly selected patients in a medical facility. What is the equation for the least square regression line where the independent or predictor variable is age and the dependent or response variable is systolic blood pressure? Y=__________ X + ______________ Patient 7 is 67 years old and has a systolic blood pressure of 170 mm Hg. What is the residual? __________ mm Hg Is the actual value above, below, or on the line? What is the interpretation of the residual? (difference in actual &predicated bp, difference in age, the amount of systolic changes)
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