The creative thinking scale was applied to the students of two groups, one of them is experimental, its members are 145 students and the other is a control group, and the number of its members is 138 students the arithmetic mean of the signs of the experimental group students 72, with a standard deviation 12 and the arithmetic mean of the signs of the control group 64 and a standard deviation 9. please test the significance of the difference between the average signs of (students of the experimental and control groups) at the level of significance 0.05

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The creative thinking scale was applied
to the students of two groups, one of
them is experimental, its members are
145 students and the other is a control
group, and the number of its members
is 138 students
the arithmetic mean of the signs
of the experimental group students
72, with a standard deviation 12
and the arithmetic mean of the
signs of the control group 64 and a
standard deviation 9. please test the
significance of the difference between
the average signs of (students of the
experimental and control groups) at
the level of significance 0.05
Transcribed Image Text:The creative thinking scale was applied to the students of two groups, one of them is experimental, its members are 145 students and the other is a control group, and the number of its members is 138 students the arithmetic mean of the signs of the experimental group students 72, with a standard deviation 12 and the arithmetic mean of the signs of the control group 64 and a standard deviation 9. please test the significance of the difference between the average signs of (students of the experimental and control groups) at the level of significance 0.05
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