Question
In: Statistics and Probability
In testing: Ho:μ=40, vs. H1:μ>40, where n=25, the value of the t-test statistic is t=+2.30. Calculate...
In testing:
Ho:μ=40, vs. H1:μ>40, where n=25, the value of the t-test statistic is t=+2.30. Calculate the p-value for this test.
Solutions
Expert Solution
df = n - 1 = 24
P-value = P(t24 > 2.3) = 0.0152 (ans)
orchestra answered 2 years agoRelated Solutions
In testing: Ho:μ=40, vs. H1:μ>40, where n=25, the value of the t-test statistic is t=+2.30. Calculate...
In testing:
Ho:μ=40, vs. H1:μ>40, where n=25, the value of the t-test
statistic is t=+2.30. Calculate the p-value for this test.
Questions 1)For a test of H0 : μ = μ0 vs. H1 : μ ≠ μ0,...
Questions
1)For a test of
H0 : μ = μ0
vs.
H1 : μ ≠
μ0,
the value of the test statistic z obs is
-1.34. What is the p-value of the hypothesis test?
2)For a test of
H0 : μ = μ0
vs.
H1 : μ >
μ0,
assume that the test statistic follows a t-distribution
with 11 degrees of freedom. What is the critical value of the test
if a 1% significance level is desired?
3)For a particular...
1. For the standardized test statistic approach to hypothesis testing, calculate the test statistic for testing...
1. For the standardized test statistic approach to hypothesis
testing, calculate the test statistic for testing the null
hypothesis that the population mean is less than or equal to
9.29, given a sample mean of
13.90, a sample size of 35, and a
population standard deviation of 3.92.
Round to two decimals.
2. Using the traditional hypothesis testing approach, calculate
the critical value for testing the null hypothesis that the
population mean is greater than or equal to 13,
given...
Find test statistic and p-value and make conclusion for MEAN: x=35, n=200, Ho: p=25%, H1: p<25%,...
Find test statistic and p-value and make conclusion for
MEAN:
x=35, n=200, Ho: p=25%, H1: p<25%, confidence
level=0.05
Then find test statistic and p-value and make conclusion
for PROPORTION:
x̄=37, s=10.2, n=30, Ho: μ=32, H1: μ≠32,
confidence level=0.01
Now find test statistic and p-value and make conclusion
for TWO PROPORTIONS:
x1 = 6, n1 = 315, x2 = 80,
n2 = 320, Ho: p1 = p2,
HA: p1 < p2, α = 0.1
You wish to test the following claim (H1) at a significance level of α=0.01. Ho:μ=50.6 H1:μ<50.6...
You wish to test the following claim (H1) at a significance
level of α=0.01.
Ho:μ=50.6
H1:μ<50.6
You believe the population is normally distributed, but you do not
know the standard deviation. You obtain the following sample of
data:
data
42.1
26.9
40.1
40.6
28.7
26.4
7.8
22.9
51.2
What is the critical value for this test? (Report answer accurate
to three decimal places.)
critical value =
What is the test statistic for this sample? (Report answer accurate
to three decimal...
You wish to test the following claim (H1) at a significance level of α=0.02. Ho:μ=52.5 H1:μ<52.5...
You wish to test the following claim (H1) at a significance
level of α=0.02.
Ho:μ=52.5
H1:μ<52.5
You believe the population is normally distributed, but you do not
know the standard deviation. You obtain the following sample of
data:
data
12.7
27.2
1.3
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...
Part 1 A, You are testing H0: μ=100 vs H1: μ>100 , using a sample of...
Part 1
A, You are testing H0: μ=100
vs H1: μ>100 , using
a sample of n=20 . The test statistic is
ttest=2.15 . The P value should
be:
0.02232
0.97768
0.02198
B. You are testing H0: μ=15
vs H1: μ≠15 , using a
sample of n=8 . The 95% t Confidence Interval for
μ is 17, 23 . The P value of the test
could be:
0.9750
0.0500
0.0002
C. You are testing H0: μ=50
vs H1: μ<50 ,...
Calculate the observed value of the t statistic for testing the difference between the two population...
Calculate the observed value of the t statistic for
testing the difference between the two population means using
paired data.
Pairs
Population
1
2
3
4
5
1
1.3
1.6
1.1
1.4
1.7
2
1.2
1.4
1.1
1.2
1.8
State the test statistic. (Round your answer to three decimal
places.)
t =
Find the rejection region with α = 0.05. (If the test is
one-tailed, enter NONE for the unused region. Round your answers to
three decimal places.)
t >...
The one-sample t statistic for testing H0: μ = 10 Ha: μ > 10 from a...
The one-sample t statistic for testing
H0: μ = 10
Ha: μ > 10
from a sample of n = 22 observations has the value
t = 1.83.
What are the degrees of freedom for this statistic?
Answer: ________
Give the two critical values t* from the t
distribution critical values table that bracket t.
Answer: ______< t < ______
(C) Is the value
t = 1.83 significant at the 5% level?
Yes
No ...
The one-sample t statistic for testing H0: μ = 10 Ha: μ > 10 from a...
The one-sample t statistic for testing H0: μ = 10 Ha: μ > 10
from a sample of n = 15 observations has the value t = 1.96. (a)
What are the degrees of freedom for this statistic? (b) Give the
two critical values t* from the t distribution critical values
table that bracket t. < t < (c) Between what two values does
the P-value of the test fall? 0.005 < P < 0.01 0.01 < P
< 0.02...
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