Regression Analysis: Mango Output versus fertilizer and insecticide. Predictor coef SE Coef Constant 75.6752 10.0451 Fertilizer 2.310 1.96 Insecticide 4.2150 2.015 X X 13.1459 R-Sqr = 89.1% R-sgr (Adjusted) = 85.64 whin lysis of Variance rce MS DF SS ression 2 20,200.35 X dual Error 37 140.50 al a) Fill-up the blanks as marked. b) Can you conclude that application of fertilizers have increased mango output significantly at 5% level of significance. c) Construct a 95% confidence interval for Fertilizer coefficient.
Regression Analysis: Mango Output versus fertilizer and insecticide. Predictor coef SE Coef Constant 75.6752 10.0451 Fertilizer 2.310 1.96 Insecticide 4.2150 2.015 X X 13.1459 R-Sqr = 89.1% R-sgr (Adjusted) = 85.64 whin lysis of Variance rce MS DF SS ression 2 20,200.35 X dual Error 37 140.50 al a) Fill-up the blanks as marked. b) Can you conclude that application of fertilizers have increased mango output significantly at 5% level of significance. c) Construct a 95% confidence interval for Fertilizer coefficient.
A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Transcribed Image Text:A city boy started an orchard in his native village. He consulted an agricultural extension
officer and used fertilizer and insecticide per his advice. He wanted to estimate the
contribution of fertilizer and insecticide on output and decided to use regression analysis.
Following table gives the MINITAB output.
Regression Analysis: Mango Output versus fertilizer and insecticide.
Predictor
сoef
SE Coef
Constant
75.6752
10.0451
X
Fertilizer
2.310
1.96
Insecticide
4.2150
2.015
X
X
S= 13.1459
R-Sgr = 89.1%
R-sgr (Adjusted) = 85.64
Analysis of Variance
Source
DF
SS
MS
Regression
2
20,200.35
X
Residual Error
37
140.50
Total
a) Fill-up the blanks as marked.
b) Can you conclude that application of fertilizers have increased mango output
significantly at 5% level of significance.
c) Construct a 95% confidence interval for Fertilizer coefficient.
d) What is the value coefficient of multiple determinations. Why is the adjusted coefficient
of multiple determination is less than the coefficient of multiple determination. What is
the problem with coefficient of multiple determination that led to the development of
adjusted coefficient of multiple determination?
e) Interpret the coefficient for Insecticide?
P.
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