Growth Hormone and
our UCLA Population


For an example of a two parameter test involving dependent variables, we shall conduct experiments with our sample of the UCLA student population from previous lessons,whose heights are listed below:

Student Height in Inches (before treatment)

59

62

63

63

64

64

64

65

65

66

66

66

67

67

67

67

68

68

68

69

69

70

70

71

71

72

72

72

73

74

76

77

We have subjected the group of 32 students to an experimental growth hormone Laxon, a derivative of processed primate pituitary glands.  After one month, we survey their heights again, and obtain the following results:

Student Height in Inches (after treatment)

58

62

63

65

64

65

64

66

65

66

67

66

67

69

67

67

69

68

68

69

69

72

70

71

71

74

72

73

73

76

75

78

The first step is to calculate the differences between the ordered pairs.


   

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