and post-test samples for n = 49 subjects. The average d deviation of the differences of sa = 46.7. his sample? (Report answer accurate to three decimal plac mple? (Report answer accurate to four decimal places.) ecision to...
and post-test samples for n = 49 subjects. The average d deviation of the differences of sa = 46.7. his sample? (Report answer accurate to three decimal plac mple? (Report answer accurate to four decimal places.) ecision to...
A First Course in Probability (10th Edition)
10th Edition
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Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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![You wish to test the following claim (H.) at a significance level of a = 0.10. For the context of this
problem, µa = 12 – 41 where the first data set represents a pre-test and the second data set represents
a post-test.
H.: Hd = 0
Ha: Pa > 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 samples for n = 49 subjects. The average difference (post -
pre) is d = 16 with a standard deviation of the differences of sa = 46.7.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
less than (or equal to) a
O greater than a
This test statistic leads to a decision to...
O reject the null
O accept the null
O fail to reject the null
As such, the final conclusion is that...
O There is sufficient evidence to warrant rejection of the claim that the mean difference of post-test
from pre-test is greater than 0.
O There is not sufficient evidence to warrant rejection of the claim that the mean difference of post-
test from pre-test is greater than 0.
O The sample data support the claim that the mean difference of post-test from pre-test is greater
than 0.
O There is not sufficient sample evidence to support the claim that the mean difference of post-test
from pre-test is greater than 0.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4453f6aa-2151-4ed2-993a-150e376599c9%2F3d81b2ce-bb49-4478-9d06-3f5c96de2c5f%2Fqr1j4na_processed.png&w=3840&q=75)
Transcribed Image Text:You wish to test the following claim (H.) at a significance level of a = 0.10. For the context of this
problem, µa = 12 – 41 where the first data set represents a pre-test and the second data set represents
a post-test.
H.: Hd = 0
Ha: Pa > 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 samples for n = 49 subjects. The average difference (post -
pre) is d = 16 with a standard deviation of the differences of sa = 46.7.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
less than (or equal to) a
O greater than a
This test statistic leads to a decision to...
O reject the null
O accept the null
O fail to reject the null
As such, the final conclusion is that...
O There is sufficient evidence to warrant rejection of the claim that the mean difference of post-test
from pre-test is greater than 0.
O There is not sufficient evidence to warrant rejection of the claim that the mean difference of post-
test from pre-test is greater than 0.
O The sample data support the claim that the mean difference of post-test from pre-test is greater
than 0.
O There is not sufficient sample evidence to support the claim that the mean difference of post-test
from pre-test is greater than 0.
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