WPS OfficeTutorial 8.pdfWAN NU...O Go Premium= Menu vHomeInsertCommentEditPageProtectToolsKECN3122Tutorial 8: Simple Linear RegressionB1) A sales manage collected the following on annual sales for new customer accounts and thenumber of years of experience for a sample of 10 salespersons.3ESalespersonYears of ExperienceAnnual Sales (RM1000S)11803.97492441021036.81117101198101239.1111710131361/3BO 00+ 23160% - -10:52 AM30/12/2020近 WPS OfficeTutorial 8.pdfWAN NU..O Go Premium= Menu vHomeInsertCommentEditPageProtectToolsK5) Refer to problem (1). The estimated regression equation for the data is ŷ = 80 + 4x. For thesedata i = 7, E(x; – x)² = 142, and s = 4.6098.%3D%3DB3Ea. Develop a 95% confidence interval for the mean annual sales for all salespersonswith nine years of experience.b. The company is considering hiring Salesperson 11 with nine years of experience.Develop a 95% prediction interval of annual sales for this salesperson.C.Discuss the differences in your answers in part (a) and (b).3/3BO 00+ 23160% - -3:10 PMO 4) G30/12/2020近

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Description: WPS OfficeTutorial 8.pdfWAN NU...O Go Premium= Menu vHomeInsertCommentEditPageProtectToolsKECN3122Tutorial 8: Simple Linear RegressionB1) A sales manage collected the following on annual sales for new customer accounts and thenumber of years of expe

Given : The estimated regression equation is y^ = 80 + 4x a. To develop a 95% confidence interval…

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Develop a 95% confidence interval for the mean annual sales for all salespersons with nine years of experience. b. The company is considering hiring Salesperson 11 with nine years of experience. Develop a 95% prediction interval of annual sales for this salesperson. c. Discuss the differences in your answers in part (a) and (b).

Develop a 95% confidence interval for the mean annual sales for all salespersons with nine years of experience. b. The company is considering hiring Salesperson 11 with nine years of experience. Develop a 95% prediction interval of annual sales for this salesperson. c. Discuss the differences in your answers in part (a) and (b).

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.

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ECN3122
Tutorial 8: Simple Linear Regression
B
1) A sales manage collected the following on annual sales for new customer accounts and the
number of years of experience for a sample of 10 salespersons.
3E
Salesperson
Years of Experience
Annual Sales (RM1000S)
1
1
80
3.
97
4
92
4
4
102
103
6.
8
111
7
10
119
8
10
123
9.
11
117
10
13
136
1/3
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+ 23
160% - -
10:52 AM
30/12/2020
近

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5) Refer to problem (1). The estimated regression equation for the data is ŷ = 80 + 4x. For these
data i = 7, E(x; – x)² = 142, and s = 4.6098.
%3D
%3D
B
3E
a. Develop a 95% confidence interval for the mean annual sales for all salespersons
with nine years of experience.
b. The company is considering hiring Salesperson 11 with nine years of experience.
Develop a 95% prediction interval of annual sales for this salesperson.
C.
Discuss the differences in your answers in part (a) and (b).
3/3
BO 00
+ 23
160% - -
3:10 PM
O 4) G
30/12/2020
近

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