Q1) Following data represent x = boat sales and y = boat trailer sales from 1995 through 2000.
Boat sales
|
boat trailer sales
|
year
|
thousands
|
thousands
|
1995
|
649
|
207
|
1996
|
619
|
194
|
1997
|
596
|
181
|
1998
|
576
|
174
|
1999
|
585
|
168
|
2000
|
574
|
159
|
a) Find out the least-squares regression line and interpret its slope.
b) Estimate, for year during which 500,000 boats are sold, number of boat trailers that would be sold.
What reasons might describe why number of boat trailers sold per year is less than te number of boats sold per year?