Question
In: Statistics and Probability
You are testing H0:μ=100 against Ha:μ<100 with degrees of freedom of 24. The t statistic is...
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You are testing H0:μ=100 against Ha:μ<100 with degrees of freedom of 24. The t statistic is -2.25 .
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Solutions
Expert Solution
0.01<P value < 0.025
P value =0.0169.................by using Excel for left tailed test =TDIST(ABS(-2.25),24,1)
orchestra answered 2 years agoRelated Solutions
You are testing H0:μ=100 against Ha:μ<100 with degrees of freedom of 24. The t statistic is...
You are testing H0:μ=100 against Ha:μ<100 with degrees of
freedom of 24.
The t statistic is -2.15 . The P-value for the statistic falls
between _ and _.
You are testing H0:μ=100 against Ha:μ<100 with degrees of freedom of 24. The t statistic is...
You are testing H0:μ=100 against Ha:μ<100 with degrees of
freedom of 24. The t statistic is -2.25 . The P-value for the
statistic falls between __ and ___
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...
1) The one-sample t statistic for testing H0: μ = 10 Ha: μ > 10 from...
1) The one-sample t statistic for testing
H0: μ = 10
Ha: μ > 10
from a sample of n = 18 observations has the value
t = 1.99.
(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) If you have software available, find the exact
P-value. (Round your answer to four decimal places.)
2)
The one-sample t...
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 pooled estimate of σ2, the associated degrees of freedom, and the observed value of the t statistic.
Use the information provided to answer the questions.
Population 1= 11 3 9
4
Population 2= 13 7 7
9 6 5
Calculate the pooled estimate of σ2, the associated degrees of
freedom, and the observed value of the t statistic. (Round s2 and
your t statistic to three decimal places.)
S(squared) =
df =
t =
What is the rejection region using α = 0.05? (If the test is
one-tailed, enter NONE for the unused region. Round your answers...
Simulate a distribution of 500 t-scores with 24 degrees of freedom into a variable called tsim...
Simulate a distribution of 500 t-scores with 24 degrees of
freedom into a variable called tsim using the rt() function. Solve
using R.
Assume that z is the test statistic. (a) H0: μ = 22.5, Ha: μ > 22.5;...
Assume that z is the test statistic.
(a) H0: μ = 22.5,
Ha: μ > 22.5; x = 24.8,
σ = 5.8, n = 30
(i) Calculate the test statistic z. (Round your answer to
two decimal places.)
(ii) Calculate the p-value. (Round your answer to four
decimal places.)
(b) H0: μ = 200,
Ha: μ < 200; x = 191.6,
σ = 36, n = 21
(i) Calculate the test statistic z. (Round your answer to
two decimal places.)...
Assume that z is the test statistic. (a) H0: μ = 22.5, Ha: μ > 22.5;...
Assume that z is the test statistic.
(a) H0: μ = 22.5,
Ha: μ > 22.5; x = 24.8,
σ = 7.6, n = 40
(i) Calculate the test statistic z. (Round your answer to
two decimal places.)
(ii) Calculate the p-value. (Round your answer to four
decimal places.)
(b) H0: μ = 200,
Ha: μ < 200; x = 191.5,
σ = 38, n = 30
(i) Calculate the test statistic z. (Round your answer to
two decimal places.)...
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