7.7 The following is a portion of a classic data set called the “pilot plot data” in Fitting…

7.7    The following is a portion of a classic data set called the “pilot plot  data”  in  Fitting Equations  to Data by Daniel and Wood, published in 1971. The response y is the acid content of material produced by titration, whereas the regressor x is the organic acid content produced by extraction and weighing.

y        x        y             x


60                               71

60                               71

40                               47

55                               53

50                               68

65                               57

50                               79


76         123

62           55

66         100

58           75

88         159


70         109

37           48

82         138

88         164

43           28


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