Answer the given word problem by performing the test of hypothesis using t- test with two unequal sample means and standard deviations. A teacher wishes to find out if the proposed method of teaching Statistic is more effective than the existing. Two groups of approximately equal intelligence were randomly selected. From one group, the teacher selected 10 students for the proposed method of teaching. From the second group, the teacher selected another 9 students for existing method. After 2 months of teaching, same 30 item test was administered to the two groups. Below are the summary of the values used. Method Proposed Existing N 10 N2 = 9 X = 24.27 X = 21.07 S = 4.98 S2 5.21

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Answer the given word problem by performing the test of hypothesis using t-
test with two unequal sample means and standard deviations.
A teacher wishes to find out if the proposed method of teaching Statistic
is more effective than the existing. Two groups of approximately equal
intelligence were randomly selected. From one group, the teacher selected 10
students for the proposed method of teaching. From the second group, the
teacher selected another 9 students for existing method. After 2 months of
teaching, same 30 item test was administered to the two groups. Below are the
summary of the values used.
Method
Proposed
Existing
N 10
N2 = 9
X = 24.27
X = 21.07
S = 4.98
S2 5.21
Transcribed Image Text:Answer the given word problem by performing the test of hypothesis using t- test with two unequal sample means and standard deviations. A teacher wishes to find out if the proposed method of teaching Statistic is more effective than the existing. Two groups of approximately equal intelligence were randomly selected. From one group, the teacher selected 10 students for the proposed method of teaching. From the second group, the teacher selected another 9 students for existing method. After 2 months of teaching, same 30 item test was administered to the two groups. Below are the summary of the values used. Method Proposed Existing N 10 N2 = 9 X = 24.27 X = 21.07 S = 4.98 S2 5.21
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