Use the estimated regression coefficients rounded to  decimals in your calculations. а. Develop a  confidence interval for the mean amount of total itemized deductions for all taxpayers with an adjusted gross income of  (to  decimals).

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Data given below are on the adjusted gross income  and the amount of itemized deductions taken by taxpayers. Data were reported in thousands of dollars. With the estimated regression equation , the point estimate of a reasonable level of total itemized deductions for a taxpayer with an adjusted gross income of  is . Click on the datafile to reference the data.

Excel File: data14-37.xlsx

 

Adjusted Gross Reasonable Amount of Itemized
Income ($1000s) Deductions ($1000s)
22   9.6  
27   9.6  
32   10.1  
48   11.1  
65   13.5  
85   17.7  
120   25.5  

 

Use the estimated regression coefficients rounded to  decimals in your calculations.

а. Develop a  confidence interval for the mean amount of total itemized deductions for all taxpayers with an adjusted gross income of  (to  decimals).

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