Concept explainers
(a)
To find:The quadratic regressionfor the datagiven in the table for the gross revenue of Broadway season.
(a)
Answer to Problem 54E
The quadratic regression equation for the given data ofBroadway Season Revenue is
Explanation of Solution
Given information:The table given below shows the gross revenue for Broadway season in different years:
Broadway Season Revenue | |
Year | Amount ($ millions) |
1994 | 406 |
1999 | 603 |
2004 | 769 |
2005 | 862 |
2006 | 939 |
2007 | 938 |
Calculation:
Consider that
To find the natural logarithm regression equation of the given data, use graphing calculator.
Step 1: Press
Step 2: List the input values 4, 9, 14, 15, 16 and 17 in the L1 column.
Step 3: List the input values 406, 603, 769, 862, 939 and 938 in the L2 column.
Step 4: Press the keystrokes
Therefore, the quadratic regression equation for the Broadway Season Revenue is
(b)
To plot:The graph of the quadratic regression for the given data on a
(b)
Explanation of Solution
Given information:The table given below shows the gross revenue for Broadway season in different years:
Broadway Season Revenue | |
Year | Amount ($ millions) |
1994 | 406 |
1999 | 603 |
2004 | 769 |
2005 | 862 |
2006 | 939 |
2007 | 938 |
Graph:
From part (a), the quadratic regression equation for the Broadway Season Revenue is
Step 1: Press
Step 2: Press
Step 3: Press the keystrokes
Figure (1)
Interpretation: From the graph it can be observed that the gross revenue for Broadway season in year 2008 is more than 1000 millions of dollars.
(c)
To find: The amount of gross revenue for the Broadway Season in year 2012.
(c)
Answer to Problem 54E
The amount of gross revenue for the Broadway Season in year 2012 is 1228.15 millions of dollars.
Explanation of Solution
Given information:The table given below shows the gross revenue for Broadway season in different years:
Broadway Season Revenue | |
Year | Amount ($ millions) |
1994 | 406 |
1999 | 603 |
2004 | 769 |
2005 | 862 |
2006 | 939 |
2007 | 938 |
Calculation:
From part (a), the quadratic regression equation for the Broadway Season Revenue is
Consider that
Substitute 22 for x in the quadratic regression equation.
Therefore, the amount of gross revenue for the Broadway Season in year 2012 is 1228.15 millions of dollars.
(d)
To find:The linear regression for the data given in the table for the gross revenue of Broadway season and the amount of revenue in 2012.
(d)
Answer to Problem 54E
The linear regression equation for the Broadway Season Revenue is
Explanation of Solution
Given information:The table given below shows the gross revenue for Broadway season in different years:
Broadway Season Revenue | |
Year | Amount ($ millions) |
1994 | 406 |
1999 | 603 |
2004 | 769 |
2005 | 862 |
2006 | 939 |
2007 | 938 |
Calculation:
To find the linear regression equation of the given data, use graphing calculator.
Press the keystrokes
Now, substitute 22 for x in the above equation to find the revenue in 2012.
Therefore, the linear regression equation for the Broadway Season Revenue is
Chapter 1 Solutions
Calculus 2012 Student Edition (by Finney/Demana/Waits/Kennedy)
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