A researcher developed a regression model to predict the tear rating of a bag of coffee based on the plate gap in bag-sealing equipment. Data were collected on 30 bags in which the plate gap was varied. An analysis of variance from the regression showed that b, = 0.7501 an So, 0.2241. a. At the 0.05 level of significance, is there evidence of a linear relationship between the plate gap of the bag-sealing machine and the tear rating of a bag of coffee? b. Construct a 95% confidence interval estimate of the population slope. B₁. a. Determine the hypotheses for the test. Choose the correct answer below. OA. H₂ Boso H₁: B₂ > 0 OD. Ho: B₂50 H₁: B₁0 Compute the test statistic. The test statistic is 3.35. (Round to two decimal places as needed.) Determine the critical value(s). The critical value(s) is (are) -2.05.2.05 (Use a comma to separate answers as needed. Round to two decimal places as needed.) Reach a decision. B. H₂ P₁=0 H₁: B₁0 O E. Ho: Bo=0 H₁: B₂0 OC. Ho: B₂ 20 H₁: B₂ <0 OF H₂ B, 20 H₁: B₁ <0 Reject Ho. There is sufficient evidence at the 0.05 level of significance to conclude that there is a linear relationship between the plate gap of the bag-sealing machine and the tear rating of a bag of coffee. b. The 95% confidence interval is sp, s (Round to four decimal places as needed.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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A researcher developed a regression model to predict the tear rating of a bag of coffee based on the plate gap in bag-sealing equipment. Data were collected on 30 bags in which the plate gap was varied. An analysis of variance from the regression showed that b₁ = 0.7501 and
Sb, = 0.2241.
a. At the 0.05 level of significance, is there evidence of a linear relationship between the plate gap of the bag-sealing machine and the tear rating of a bag of coffee?
b. Construct a 95% confidence interval estimate of the population slope, B₁.
a. Determine the hypotheses for the test. Choose the correct answer below.
O A. Ho: Bo ≤0
H: Bo>0
O D. Ho: B₁ ≤0
H₁: B₁>0
Compute the test statistic.
The test statistic is 3.35. (Round to two decimal places as needed.)
Determine the critical value(s).
B. Ho: B₁=0
H₁: B₁ #0
O E. Ho: Bo=0
Hạ: Bo#0
G
ỌC. Ho: Boz0
Hi: Boo
OF. Ho: B₁ 20
H₁: B₁ <0
The critical value(s) is (are) -2.05.2.05
(Use a comma to separate answers as needed. Round to two decimal places as needed.)
Reach a decision.
Reject Ho. There is sufficient evidence at the 0.05 level of significance to conclude that there is a linear relationship between the plate gap of the bag-sealing machine and the tear rating of a bag of coffee.
b. The 95% confidence interval is ≤B₁ ≤
(Round to four decimal places as needed.)
Transcribed Image Text:A researcher developed a regression model to predict the tear rating of a bag of coffee based on the plate gap in bag-sealing equipment. Data were collected on 30 bags in which the plate gap was varied. An analysis of variance from the regression showed that b₁ = 0.7501 and Sb, = 0.2241. a. At the 0.05 level of significance, is there evidence of a linear relationship between the plate gap of the bag-sealing machine and the tear rating of a bag of coffee? b. Construct a 95% confidence interval estimate of the population slope, B₁. a. Determine the hypotheses for the test. Choose the correct answer below. O A. Ho: Bo ≤0 H: Bo>0 O D. Ho: B₁ ≤0 H₁: B₁>0 Compute the test statistic. The test statistic is 3.35. (Round to two decimal places as needed.) Determine the critical value(s). B. Ho: B₁=0 H₁: B₁ #0 O E. Ho: Bo=0 Hạ: Bo#0 G ỌC. Ho: Boz0 Hi: Boo OF. Ho: B₁ 20 H₁: B₁ <0 The critical value(s) is (are) -2.05.2.05 (Use a comma to separate answers as needed. Round to two decimal places as needed.) Reach a decision. Reject Ho. There is sufficient evidence at the 0.05 level of significance to conclude that there is a linear relationship between the plate gap of the bag-sealing machine and the tear rating of a bag of coffee. b. The 95% confidence interval is ≤B₁ ≤ (Round to four decimal places as needed.)
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