A local building products store has accumulated sales data for twoby-four lumber (in board feet) and the number of building permits in its area for the past 10 quarters: Building Permits, Lumber Sales Quarter x (1.0005 of bd- ft). y l 8 12.6 2 12 16.3 3 7 9-3 4 9 1 1-5 5 15 18.1 6 6 7.6 7 5 6.2 8 8 14.2 9 10 15-0 10 12 17.8 Develop a linear regression model for these data and determine the strength of the linear rela tionship by using correlation. If the model appears to be relatively strong, determine the forecast for lumber, given 10 building permits in the next quarter