Question
In: Statistics and Probability
You wish to test the following claim a significance level of α = 0.01 . H...
You wish to test the following claim a significance level of α = 0.01 . H o : p = 0.44 H a : p ≠ 0.44 You obtain a sample of size n = 660 in which there are 275 successful observations.
What is the test statistic for this sample? test statistic = ? Round to 3 decimal places.
What is the p-value for this sample? P-value = ? Use Technology Round to 4 decimal places.
Solutions
orchestra answered 1 year agoRelated Solutions
You wish to test the following claim (HaHa) at a significance level of α=0.01α=0.01. For the...
You wish to test the following claim (HaHa) at a significance
level of α=0.01α=0.01. For the context of this problem,
μd=μ2−μ1μd=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
the following sample of data:
pre-test
post-test
51
-25.8
49.5
51.4
56.5
110.7
35.5
22.7
45.2
67.4
46.8
27.1
41
10...
You wish to test the following claim (Ha) at a significance level of α=0.01. Ho: p1...
You wish to test the following claim (Ha) at a significance
level of α=0.01.
Ho: p1 = p2
Ha: p1 ≠ p2
You obtain 49.1% successes in a sample of size n1=689 from the
first population. You obtain 57.7% successes in a sample of size
n2=691 from the second population. For this test, you should NOT
use the continuity correction, and you should use the normal
distribution as an approximation for the binomial
distribution.
What is the test statistic for...
You wish to test the following claim (Ha) at a significance level of α=0.01. Ho:p1=p2...
You wish to test the following claim (Ha) at a significance
level of α=0.01.
Ho:p1=p2
Ha:p1<p2
You obtain 69 successes in a sample of size n1=735 from the first
population. You obtain 38 successes in a sample of size n2=210 from
the second population. For this test, you should NOT use the
continuity correction, and you should use the normal distribution
as an approximation for the binomial distribution.
What is the test statistic for this sample? (Report answer...
You wish to test the following claim ( H a ) at a significance level of...
You wish to test the following claim ( H a ) at a significance
level of α = 0.002 . H o : μ = 73.8 H a : μ > 73.8 You believe
the population is normally distributed, but you do not know the
standard deviation. You obtain a sample of size n = 31 with mean M
= 83.5 and a standard deviation of S D = 16.9 . What is the test
statistic for this sample? (Report...
You wish to test the following claim ( H a ) at a significance level of...
You wish to test the following claim ( H a ) at a significance
level of α = 0.01 . H o : μ 1 = μ 2 H a : μ 1 < μ 2 You believe
both populations are normally distributed, but you do not know the
standard deviations for either. However, you also have no reason to
believe the variances of the two populations are not equal. You
obtain a sample of size n 1 = 24...
You wish to test the following claim ( H a ) at a significance level of...
You wish to test the following claim ( H a ) at a significance
level of α = 0.02 .
H o : p 1 = p 2
H a : p 1 < p 2
You obtain 159 successes in a sample of size n 1 = 646 from the
first population. You obtain 66 successes in a sample of size n 2 =
221 from the second population.
What is the test statistic for this sample? (Report answer...
You wish to test the following claim ( H a ) at a significance level of...
You wish to test the following claim ( H a ) at a significance
level of α = 0.002 . H o : μ 1 = μ 2 H a : μ 1 ≠ μ 2 You believe
both populations are normally distributed, but you do not know the
standard deviations for either. However, you also have no reason to
believe the variances of the two populations are not equal. You
obtain the following two samples of data. Sample #1...
You wish to test the following claim ( H a ) at a significance level of...
You wish to test the following claim ( H a ) at a significance
level of α = 0.005 .
H o : μ = 50.7
H a : μ ≠ 50.7
You believe the population is normally distributed, but you do
not know the standard deviation. You obtain a sample of size n = 5
with mean M = 26.7 and a standard deviation of S D = 14.5 .
What is the p-value for this sample? (Report answer...
You wish to test the following claim ( H a ) at a significance level of...
You wish to test the following claim ( H a ) at a significance
level of α = 0.02 . H o : p 1 = p 2 H a : p 1 < p 2 You obtain
205 successes in a sample of size n 1 = 228 from the first
population. You obtain 324 successes in a sample of size n 2 = 320
from the second population. For this test, you should NOT use the
continuity correction,...
You wish to test the following claim ( H a ) at a significance level of...
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 one data set represents a pre-test and the
other data set represents a post-test. Each row represents the pre
and post test scores for an individual.
H o : μ d = 0 H a...
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