I would like for you to answer a-1 through b-1 Akiko Hamaguchi is a manager at a small sushi restaurant in Phoenix, Arizona. Akiko is concerned that the weak economicenvironment has hampered foot traffic in her area, thus causing a dramatic decline in sales. In order to offset the decline in sales, shehas pursued a strong advertising campaign. She believes advertising expenditures have a positive influence on sales. To support herclaim, Akiko estimates the following linear regression model: Sales = 69 + 6,Unemployment + 6,Advertising + E. A portion of theregression results is shown in the accompanying table.ANOVAdfSSMSSignificance FRegressionResidual55.597427.79879.4910.0021441.00382.9288Total1696.6010StandardCoefficientsErrort Statp-value0.005InterceptUnemploymentAdvertising12.16403.66403.3200-0.66150.3005-2.20100.0450.02580.00872.96600.010a-1. Choose the appropriate hypotheses to test whether the explanatory variables jointly influence sales.O Ho: 8, = 6, = 0; HA: At least one 6; # 0O Ho: 61 = 62 = 0; HA: At least one 6, > 0O Ho: 61 = 62 = 0; HA: At least one 6, < 0 a-2. Find the value of the appropriate test statistic. (Round your answer to 3 decimal places.)Test statistica-3. At the 5% significance level, do the explanatory variables jointly influence sales?O Yes, since the F-test is significant.O Yes, since all t-tests are significant.O Both answers are correct.b-1. Choose the hypotheses to test whether the unemployment rate is negatively related with sales.O Họ: 61 = 0; Ha: 81 * 0O Ho: 81 2 0; HA: 81 < 0O Hg: 61 s 0; HA: 81 > 0

a-1 The hypothesis for testing whether the explanatory variables are jointly influence sales or not.…

Akiko Hamaguchi is a manager at a small sushi restaurant in Phoenix, Arizona. Akiko is concerned that the weak economic environment has hampered foot traffic in her area, thus causing a dramatic decline in sales. In order to offset the decline in sales, she has pursued a strong advertising campaign. She believes advertising expenditures have a positive influence on sales. To support her claim, Akiko estimates the following linear regression model: Sales = 6, + 6,Unemployment + 6,Advertising + E. A portion of the regression results is shown in the accompanying table. ANOVA df Significance F SS MS F Regression 2 55.5974 27.7987 9.491 0.002 Residual 14 41.0038 2.9288

Akiko Hamaguchi is a manager at a small sushi restaurant in Phoenix, Arizona. Akiko is concerned that the weak economic environment has hampered foot traffic in her area, thus causing a dramatic decline in sales. In order to offset the decline in sales, she has pursued a strong advertising campaign. She believes advertising expenditures have a positive influence on sales. To support her claim, Akiko estimates the following linear regression model: Sales = 6, + 6,Unemployment + 6,Advertising + E. A portion of the regression results is shown in the accompanying table. ANOVA df Significance F SS MS F Regression 2 55.5974 27.7987 9.491 0.002 Residual 14 41.0038 2.9288

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section1.FOM: Focus On Modeling: Fitting Lines To Data

Problem 10P

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