Question

Moviegoer Spending on Snacks (n = 10 persons) Spent 2.85 6.50 1.50 6.35 6.20 6.75 3.60 6.10 8.35 4.35 30 50 34 12 37 36 26 46 What is the upper bound of the 90% confidence interval around the slope estimate? Select one: a. 0.0687 b.0.0886 c.0.0612 d. 0.0569 e-0.0684 What critical t values should be used to test whether the slope parameter for Age is different from zero at the 0.05 level? Select one: 0 a, 1.96,-1.96 O b. 2.045,-2.045 c.1.645,-1.645 d. 2.306,-2.306

Answer 1

AgeSpent 2 30 2.85 3 501 6.5 4 34 5 12 6.35 6 37 Regression Statistics Multiple R R Square 0.292 0.085 1.5 Adjusted R Square0.029 Standard Error Observations ANOVA 2.128 6.2 7 33 6.75 8 363.6 9 266.1 10 MS 3.37 4.53 Sign F Regression Residual Total 3.37 36.24 39.61 0.74 0.41 10 18 8.35 11 46 4.35 12 13 14 15 16 17 18 19 Coefficients SE t Stat 3.33 -0.86 P-value 0.01 0.41 Lower 95%Upper 95% Intercept 6.96 2.09 2.14 11.78 Age -0.05 0.06 -0.19 0.0886 The Upper bound of the 90% confidance is 0.0569 The critical value 2.306-2.306 TINV(0.05,8)