Table 4 Statistical comparison of the results obtained by the proposed spectrophotometric methods and those obtained by the official ones for the determination of PSE and LOR in their pure powdered forms

Mean

100.07

100.12

100.09

99.64

99.72

99.53

100.10

99.82

99.98

100.06

SD

0.69

0.67

0.76

0.65

0.22

0.42

0.68

0.47

0.62

0.75

N

7

7

7

7

7

6

7

7

7

7

Variance

0.4761

0.4489

0.5776

0.4225

0.0484

0.1764

0.4624

0.2209

0.3844

0.5625

Student’s t test^b

1.665 (2.201)

1.860 (2.201)

1.601 (2.201)

0.355 (2.201)

1.046 (2.201)

0.104 (2.179)

0.717 (2.179)

0.217 (2.179)

F test^b

2.70 (4.95)

2.54 (4.95)

3.27 (4.95)

2.40(4.95)

3.64 (4.39)

1.22 (4.28)

2.55 (4.28)

1.46 (4.28)