Below are percentages for annual sales growth and net sales attributed to loyalty card usage at 74 Noodles & Company restaurants. Annual Sales Growth (*) and Loyalty Card Usage (* of Net Sales) (n = 74 restaurants) Loyalty* Store Growth Loyalty* Store Growth% -8. 2.1 38 7. 1 1.6 -4.0 2.5 39 7.4 1.8 -3.9 1 . 7 40 7.7 2.2 -3.4 2.1 41 7.9 2.2 -3.3 2.5 42 8.1 2.8 -1.9 3.0 43 8.3 2.4 -0.8 2.3 44 8.5 3.1 -0.4 2.3 45 8.6 2.2 -0.2 2.2 46 8.7 1.3 -0.2 2.3 47 8.8 1.8 0.5 2.1 48 8.8 2.5 0.6 2.5 49 8.9 1.9 0.8 2.0 50 9 .1 2.0 1.9 2. 51 9.5 2 .4 14 15 2.0 2.0 52 10.2 2.2 2.1 2 . 53 10.7 2.2 2 .8 2.2 54 11.0 0.3 17 2 .1 55 11.3 1.9 18 2.9 4. 1.9 56 11.4 1.9 20 4.0 2.2 57 11.5 2.2 21 4.0 0.7 58 11.7 2.6 22 4.0 2.0 59 1 1.8 2.2 23 4.2 1 .8 60 11.9 2 .1 24 4.6 2 . 1 61 12.5 2.0 0.9 25 5 .1 2.5 62 12.8 26 5.1 2 .6 63 13.8 1.1 27 5 .5 2.0 64 14.1 3.4 5.9 2.0 65 14.2 1.2 29 5.9 1.4 66 14.6 2.1 0.9 30 6.0 2 . 6 67 14.9 2.2 31 6.1 2 .1 68 15.4 32 6.1 2 .1 69 16.2 1.7 6.1 2.7 70 17.2 2.4 34 6.3 2.0 71 18.4 2 .8 6.6 2.0 20.8 1 .1 35 72 36 6.9 1 . 6 73 25.5 0.6 6.9 1.9 74 28.8 1.8 37 Click here for the Excel Data File (b) Find the correlation coefficient. (Round your answer to 3 decimal places. A negative value should be indicated by a minus sign.)