=+Cooper Toys sells a portable baby stroller called the Tot n’ Trot.

The past two years of demand for Tot n’ Trots are shown in the following table. Use this information for problems 12 and 13.

PERIOD DEMAND January 2018 1 1,200 February 2 1,400 March 3 1,450 April 4 1,580 May 5 1,796 June 6 2,102 July 7 2,152 August 8 2,022 September 9 1,888 October 10 1,938 November 11 1,988 December 12 1,839 January 2019 13 1,684 February 14 1,944 March 15 1,994 April 16 2,154 May 17 2,430 June 18 2,827 July 19 2,877 August 20 2,687 September 21 2,492 October 22 2,542 November 23 2,592 December 24 2,382