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A university is concerned about the presence of grade inflation, which is defined as an increase in the average GPA of the institutions students over time without a comparable increase in academic standards. To investigate this phenomenon, the average GPA for the student body was recorded over the past 11 years, as shown in the table below. Construct a 95% confidence interval for the regression slope.  Construct a 95% confidence interval for the slope.  LCL=  UCL=

A university is concerned about the presence of grade inflation, which is defined as an increase in the average GPA of the institutions students over time without a comparable increase in academic standards. To investigate this phenomenon, the average GPA for the student body was recorded over the past 11 years, as shown in the table below. Construct a 95% confidence interval for the regression slope.  Construct a 95% confidence interval for the slope.  LCL=  UCL=

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A university is concerned about the presence of grade inflation, which is defined as an increase in the average GPA of the institutions students over time without a comparable increase in academic standards. To investigate this phenomenon, the average GPA for the student body was recorded over the past 11 years, as shown in the table below. Construct a 95% confidence interval for the regression slope. 

Construct a 95% confidence interval for the slope. 

LCL= 

UCL=

YEAR GPA
1 3.07
2 2.89
3 2.97
4 2.86
5 2.99
6 3.02
7 3.09
8 3.01
9 3.18
10 3.15
11 3.14
A university is concerned about the presence of grade inflation, which is defined as an increase in the average GPA of the institution's students over time without a comparable increase in academic standards. To investigate this phenomenon, the average GPA for the student body was recorded over the past 11 years, as shown in the table below. Construct a 95% confidence interval for the regression slope. | Year | GPA | Year | GPA | |------|------|------|------| | 1 | 3.07 | 7 | 3.09 | | 2 | 2.89 | 8 | 3.01 | | 3 | 2.97 | 9 | 3.18 | | 4 | 2.86 | 10 | 3.15 | | 5 | 2.99 | 11 | 3.14 | | 6 | 3.02 | | | Construct a 95% confidence interval for the slope. LCL = [ ] and UCL = [ ] (Round to three decimal places as needed.)
Transcribed Image Text:A university is concerned about the presence of grade inflation, which is defined as an increase in the average GPA of the institution's students over time without a comparable increase in academic standards. To investigate this phenomenon, the average GPA for the student body was recorded over the past 11 years, as shown in the table below. Construct a 95% confidence interval for the regression slope. | Year | GPA | Year | GPA | |------|------|------|------| | 1 | 3.07 | 7 | 3.09 | | 2 | 2.89 | 8 | 3.01 | | 3 | 2.97 | 9 | 3.18 | | 4 | 2.86 | 10 | 3.15 | | 5 | 2.99 | 11 | 3.14 | | 6 | 3.02 | | | Construct a 95% confidence interval for the slope. LCL = [ ] and UCL = [ ] (Round to three decimal places as needed.)
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