Number of Accidents 25 45 64 95 Using the least-squares regression method, the trend equation for forecasting is (round your responses to two decimal places):

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
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The following gives the number of accidents that occurred on Florida State Highway 101 during the last 4 months:
Month
Jan
Feb
Mar
Аpr
Number of Accidents
25
45
64
95
Using the least-squares regression method, the trend equation for forecasting is (round your responses to two decimal places):
+
Transcribed Image Text:The following gives the number of accidents that occurred on Florida State Highway 101 during the last 4 months: Month Jan Feb Mar Аpr Number of Accidents 25 45 64 95 Using the least-squares regression method, the trend equation for forecasting is (round your responses to two decimal places): +
City government has collected the following data on annual sales tax collections and new car registrations:
Annual Sales Tax Collections (in millions)
$1.00
$1.40
$1.88
$2.00
$1.84
$2.10
$2.32
New Car Registrations (in thousands)
13
15
15
14
16
19
a) The least-squares regression equation that shows the best relationship between sales tax (in millions) and car registrations (in thousands) is (round your responses to three decimal places and include a minus sign if necessary):
where y = Dependent Variable and x = Independent Variable.
Transcribed Image Text:City government has collected the following data on annual sales tax collections and new car registrations: Annual Sales Tax Collections (in millions) $1.00 $1.40 $1.88 $2.00 $1.84 $2.10 $2.32 New Car Registrations (in thousands) 13 15 15 14 16 19 a) The least-squares regression equation that shows the best relationship between sales tax (in millions) and car registrations (in thousands) is (round your responses to three decimal places and include a minus sign if necessary): where y = Dependent Variable and x = Independent Variable.
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