For the data and sample regression equation shown below, do the following. a. Decide, at the 10% significance level, whether the data provide sufficient evidence to conclude that x is useful for predicting y. b. Find a 90% confidence interval for the slope of the population regression line. 24 3 10 4 1 3-3 y=-1.5 +1.1x, x₁ = 10, Σx;² = 30, b₁ = 1.1, and so = 3.3690 x y a. What are the hypotheses for the test? O A. Ho: B₁ = 0 and H₂: B₁ #0 O B. Ho: B₁ = 0 and H₂: B₁ >0 O C. Ho: B₁ #0 and H₂: B₁ = 0 O D. Ho: B₁ = 0 and H₂: B₁ <0 What is the test statistic? t= (Round to two decimal places as needed.) Find the P-value. P-value = (Round to three decimal places as needed.)
For the data and sample regression equation shown below, do the following. a. Decide, at the 10% significance level, whether the data provide sufficient evidence to conclude that x is useful for predicting y. b. Find a 90% confidence interval for the slope of the population regression line. 24 3 10 4 1 3-3 y=-1.5 +1.1x, x₁ = 10, Σx;² = 30, b₁ = 1.1, and so = 3.3690 x y a. What are the hypotheses for the test? O A. Ho: B₁ = 0 and H₂: B₁ #0 O B. Ho: B₁ = 0 and H₂: B₁ >0 O C. Ho: B₁ #0 and H₂: B₁ = 0 O D. Ho: B₁ = 0 and H₂: B₁ <0 What is the test statistic? t= (Round to two decimal places as needed.) Find the P-value. P-value = (Round to three decimal places as needed.)
Chapter4: Linear Functions
Section: Chapter Questions
Problem 30PT: For the following exercises, use Table 4 which shows the percent of unemployed persons 25 years or...
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