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Plantcity is a large nursery and retail store specializing in house and garden plants and supplies. Jean Raouth, the assistant manager, is in the process

Plantcity is a large nursery and retail store specializing in house and garden

plants and supplies. Jean Raouth, the assistant manager, is in the process of

budgeting monthly supplies expense for 2019. She assumes that in some way

supplies expense is related to sales, either in units or in dollars. She has

collected these data for sales and supplies expenses for June 2016 through

December 2018, and has estimated sales for 2019.DataDateSupplies

ExpenseSales (Units)Sales (Dollars)June-16$2,745354$20,090July-163,200436$21,900August-163,232525$28,780September-162,199145$18,560October-162,321199$21,680November-163,432543$21,520December-164,2781,189$24,630January-172,310212$19,990February-172,573284$21,900March-172,487246$18,940April-172,484278$21,340May-173,384498$32,100June-172,945424$28,500July-172,758312$22,650August-173,394485$24,350September-172,254188$18,930October-172,763276$22,320November-173,245489$30,040December-174,5761,045$33,090January-182,103104$21,950February-182,056167$20,450March-183,874298$23,010April-182,784398$23,450May-182,345187$18,150June-182,912334$20,940July-182,093264$19,340August-182,873333$20,540September-182,563143$19,770October-182,384245$18,570November-182,476232$21,890December-183,3641,122$34,330January-19180$16,000February-19230$20,000March-19190$19,000April-19450$24,000May-19350$23,000June-19350$23,000July-19450$25,000August-19550$30,000September-19300$25,000October-19300$25,000November-19450$32,000December-19950$39,000

Required

1. Develop the regression that Jean should use based on the data andevaluate the reliability and precision of the regression you have chosen.

2. What are the predicted monthly figures for supplies expense for 2019?

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