Question

You wish to test the following claim ( H a ) at a significance level of α = 0.10 . For the context of this problem, μ d = P o s t T e s t − P r e T e s t where the first data set represents a pre-test and the second data set represents a post-test. (Each row represents the pre and post test scores for an individual. Be careful when you enter your data and specify what your μ 1 and μ 2 are so that the differences are computed correctly.) H o : μ d = 0 H a : μ d ≠ 0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain the following sample of data:

pre-test = 51.5, 54.4,54,67.7,70.1,48.1,66,63,52.3,42.3,53.4,53.4,54,70.5,58.8,57.9,62.1,46.5,43.9,66

Post test =51.9,50.6,54.1,70.8,69.1,43.3,68.9,67.6,61,39.3,65.3,54.9,64,72.3,59.7,51.5,72.1,52.5,47.8,64.4

What is the test statistic for this sample? test statistic = Incorrect (Report answer accurate to 4 decimal places.) What is the p-value for this sample? p-value = Incorrect (Report answer accurate to 4 decimal places.)

Answer #1

You wish to test the following claim ( H a ) at a significance
level of α = 0.005 . For the context of this problem, μ d = P o s t
T e s t − P r e T e s t where the first data set represents a
pre-test and the second data set represents a post-test. (Each row
represents the pre and post test scores for an individual. Be
careful when you enter your data...

You wish to test the following claim ( H a ) at a significance
level of α = 0.02 . For the context of this problem, μ d = P o s t
T e s t − P r e T e s t where the first data set represents a
pre-test and the second data set represents a post-test. (Each row
represents the pre and post test scores for an individual. Be
careful when you enter your data...

You wish to test the following claim ( H a ) at a significance
level of α = 0.02 . For the context of this problem, μ d = μ 2 − μ
1 where the first data set represents a pre-test and the second
data set represents a post-test.
H o : μ d = 0
H a : μ d < 0
You believe the population of difference scores is normally
distributed, but you do not know the...

You wish to test the following claim ( H a ) at a significance
level of α = 0.01 . For the context of this problem, μ d = μ 2 − μ
1 where the first data set represents a pre-test and the second
data set represents a post-test. H o : μ d = 0 H a : μ d ≠ 0 You
believe the population of difference scores is normally
distributed, but you do not know the...

You wish to test the following claim ( H a ) at a significance
level of α = 0.005 . For the context of this problem, μ d = μ 2 − μ
1 where the first data set represents a pre-test and the second
data set represents a post-test. H o : μ d = 0 H a : μ d > 0 You
believe the population of difference scores is normally
distributed, but you do not know the...

You wish to test the following claim ( H a ) at a significance
level of α = 0.10 . For the context of this problem, μ d = μ 2 − μ
1 where the first data set represents a pre-test and the second
data set represents a post-test. H o : μ d = 0 H a : μ d < 0 You
believe the population of difference scores is normally
distributed, but you do not know the...

You wish to test the following claim ( H a ) at a significance
level of α = 0.02 . For the context of this problem, d = x 2 − x 1
where the first data set represents a pre-test and the second data
set represents a post-test.
H o : μ d = 0 H a : μ d ≠ 0
You believe the population of difference scores is normally
distributed, but you do not know the standard...

You wish to test the following claim ( H a ) at a significance
level of α = 0.02 . For the context of this problem, d = x 2 − x 1
where the first data set represents a pre-test and the second data
set represents a post-test. H o : μ d = 0 H a : μ d ≠ 0 You believe
the population of difference scores is normally distributed, but
you do not know the standard...

You wish to test the following claim ( H a Ha ) at a
significance level of α = 0.001 α=0.001 . For the context of this
problem, μ d = μ 2 − μ 1 μd=μ2-μ1 where the first data set
represents a pre-test and the second data set represents a
post-test
Ho:μd=0Ho:μd=0
Ha:μd<0Ha:μd<0
You believe the population of difference scores is normally
distributed, but you do not know the standard deviation. You obtain
pre-test and post-test...

You wish to test the following claim ( H a ) at a significance
level of α = 0.01 . d denotes the mean of the difference between
pre-test and post-test scores. H o : μ d = 0 H a : μ d < 0 You
believe the population of difference scores is normally
distributed, but you do not know the standard deviation. You obtain
the following sample of data:
post-test: 51.5, 61.4, 54.2, 49.8, 47, 55.4, 50.3, 48,...

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