Data Evaluation Descriptive Figures

 Essay on Data Research Descriptive Stats

п»ї

Data Examination

Descriptive Figures, Estimation, Regression & Correlation Treatment Associated with a Medication on Intellectual Functioning in Children with Mental Retardation and ATTENTION DEFICIT-HYPERACTIVITY DISORDER

Hossam Elhowary

MATH-1016-15

Dr . Maria DeLucia

December 2009, 2014

Introduction

The purpose of this kind of survey was to investigate the cognitive associated with stimulant medicine in children with mental retardation and Attention-Deficit/Hyperactivity Disorder. Twenty four kids were given various dosage of your drug a placebo and 0. 60mg/kg. Variable explanations are kind of drug used and the quantity of correct reactions after currently taking of the drug. They were on each dose one week before tests. This test obtained from the preschool delay task of Gordon Diagnostic System (Gordon, 1983). However , does larger dosage result in higher intellectual performance? Histogram:

Box-and-whisker plan:

Multi storyline:

Summary statistics:

Column

and

Mean

Difference

Std. dev.

Std. err.

Median

Selection

Min

Greatest extent

Q1

Q3

Placebo

24

39. seventy five

128. 02174

11. 314669

2 . 3095972

36

forty five

26

71

33

47

0. sixty

24

forty-four. 708333

151. 7808

12. 319935

installment payments on your 5147962

42. 5

forty eight

29

seventy seven

35

fifty four

Simple linear regression effects:

Dependent Changing:. 60 mg/kgВ

Independent Adjustable: PlaceboВ

. 60 mg/kg = 10. 091611 + zero. 87086093 Placebo

Sample size: 24

Ur (correlation coefficient) = zero. 79980157

R-sq = 0. 63968255

Estimation of mistake standard deviation: 7. 5614248

Parameter estimations:

Parameter

Approximate

Std. Make a mistake.

Alternative

DF

T-Stat

P-value

Intercept

12. 091611

a few. 7500723

в‰ 0

twenty-two

1 . 7550408

0. 0932

Slope

0. 87086093

zero. 13934708

в‰ 0

twenty two

6. 2495816

F-stat

P-value

Model

you

2233. 1051

2233. 1051

39. 057271


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