14.85 [EX14-85] Can today’s high temperature be effectively predicted using yesterday’s high? Pairs of yesterday’s and today’s high temperatures were randomly selected. The results are shown in the following table. Do the data present sufficient evidence to justify the statement: “Today’s high temperature tends to correlate with yesterday’s high temperature”? Use   0.05.

Reading 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Yesterday’s 40 58 46 33 40 51 55 81 85 83 89 64 73 63 46 58 28 69 Today’s 40 56 34 59 46 51 74 77 83 84 85 68 65 60 54 62 34 66