tests. 2 A teacher wants to find out if the webcasting methods of teaching social sciences subjects is more effective than the existing standard method of teaching. Two classes of suaximately equal intelligence were selected. From one class, the teacher randomly selected a group of students as experimental group for webcasting methods. From another class, the teacher then selected another group of students as sample for existing tandard method of teaching. After one trimester, the same tests were given to the tudents. Their mean scores are shown in the following table: Method of teaching Mean score Standard deviation Sample size Webcasting method X = 82.3 S, = 12 Existing standard method X2 = 78.5 S, = 9 n; = 38 Test the hypothesis whether or not the webcasting method of teaching social sciences 0.05. subjects is more effective than the existing standard method of teaching. Use a =
tests. 2 A teacher wants to find out if the webcasting methods of teaching social sciences subjects is more effective than the existing standard method of teaching. Two classes of suaximately equal intelligence were selected. From one class, the teacher randomly selected a group of students as experimental group for webcasting methods. From another class, the teacher then selected another group of students as sample for existing tandard method of teaching. After one trimester, the same tests were given to the tudents. Their mean scores are shown in the following table: Method of teaching Mean score Standard deviation Sample size Webcasting method X = 82.3 S, = 12 Existing standard method X2 = 78.5 S, = 9 n; = 38 Test the hypothesis whether or not the webcasting method of teaching social sciences 0.05. subjects is more effective than the existing standard method of teaching. Use a =
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Please answer no. 2. Thank you in advance
Transcribed Image Text:students. Their mean scores are shown in the following table:
another class, the teacher then selected another group of students as sample for existing
r week. Is the mean sales of the products of all of the outlets significantly different
approximately equal intelligence were selected. From one class, the teacher randomly
selected a group of students as experimental group for webcasting methods. From
subjects is more effective than the existing standard method of teaching. Two classes of
hypothesis testing for both one-tailed test and two-tailed tests.
A teacher wants to find out if the webcasting methods of teaching social sciences
of their outlets with a standard deviation of P6 million. An area manager found out
from the mean sales of the outlets in the area of the manager? Use a = 5%. Perform the
on per week from their products in all
1.
the Is the mean sales of the products of all of the outlets significantly different
ner weemean sales of the outlets in the area of the manager? Use a = 5%. Perform the
A teae is more effective than the existing standard method of teaching. Two classes of
suoximately equal intelligence were selected. From one class, the teacher randomly
of students as experimental
group
selected a
group for webcasting methods. From
ndard method of teaching. After one trimester, the same tests were given to the
udents. Their mean scores are shown in the following table:chteib
Method of teaching
Mean score
Standard deviation Sample size
Webcasting method
X = 82.3
%3D
S = 12
dt daiv
4 = 42
Existing standard
Iqmsa sgal o
X2 = 78.5
S2 = 9
%3D
n; = 38
%3D
method
hor
Test the hypothesis whether or not the webcasting method of teaching social sciences
subjects is more effective than the existing standard method of teaching. Use a = 0.05.
TEST OF HYPOTHESIS USING THE Z-TEST
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