Question

Index                           1          2      &nbsp

Index                           1          2          3          4          5          6          7                                                                     

Temperature (F)          72        71        78        75        81        77        68

Pair of Gloves             37        37        32        36        33        35        39

Predict the number of pairs of gloves produced when x = 74.

Math   Statistics-And-Probability   
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Homework Answers

Answer #1
X Y XY X^2 Y^2
72 37 2664 5184 1369
71 37 2627 5041 1369
78 32 2496 6084 1024
75 36 2700 5625 1296
81 33 2673 6561 1089
77 35 2695 5929 1225
68 39 2652 4624 1521

n 7
sum(XY) 18507.00
sum(X) 522.00
sum(Y) 249.00
sum(X^2) 39048.00
sum(Y^2) 8893.00
b -0.5035
a 73.1197

ycap = a + bx

yacp = 73.1197 - 0.5035x

when x = 74

value = 73.1197 - 0.5035x
= 73.1197 - 0.5035 * 74
value = 35.8607

approx 36

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