Question
In: Statistics and Probability
Test the claim about the population mean μ at the level of significance α. Assume the...
Test the claim about the population mean μ at the level of
significance α. Assume the population is normally
distributed.
Claim: μ ≠ 20; α = 0.01. Sample statistics: = 19;
s = 3; n = 40
|
Fail to reject H0; There is not enough evidence to support the claim |
||
|
Reject H0; There is enough evidence to support the claim |
||
|
Reject H0; There is enough evidence to reject the claim |
||
|
Fail to reject H0; there is not enough evidence to reject the claim |
Solutions
orchestra answered 1 year agoRelated Solutions
Test the claim about the population mean μ at the level of significance α. Assume the...
Test the claim about the population mean μ at the level of
significance α. Assume the population is normally
distributed.
Claim: μ ≠ 95; α = 0.05; s = 1.53
Sample statistics: x = 94.1, n = 12
Fail to reject H0. There is not enough evidence at
the 5% level of significance to support the claim.
Reject H0. There is enough evidence at the 5% level
of significance to reject the claim.
Reject H0. There is enough evidence at...
Test the claim about the population mean, μ, at the given level of significance using the...
Test the claim about the population mean, μ, at the given
level of significance using the given sample statistics.
Claim: μ =30; α=0.05; σ =3.16.
Sample statistics: x bar =28.1, n=59
Identify the null and alternative hypotheses.
Calculate the standardized test statistic.
Determine the critical value(s). Select the correct choice
below and fill in the answer box to complete your choice.
A. The critical values are plus or minus ?
B. The critical value is ?
1. Test the claim about the population mean, ?, at the level of significance, ?. Assume...
1. Test the claim about the population mean, ?, at the level of
significance, ?. Assume the population is normally distributed.
Claim: ? ≤ 47, ? = 0.01, ? = 4.3 Sample statistics: ?̅ = 48.8, ?
= 40
A. Fail to reject ?0. There is enough evidence at the 1%
significance level to support claim.
B. Not enough information to decide.
C. Reject ?0. There is enough evidence at the 1% significance
level to reject the claim.
2.
Use...
Use the t-distribution. Test the claim about the population mean μ at the level of significance...
Use the t-distribution. Test the claim about
the population mean μ at the level of significance α. Assume the
population is normally distributed.
Claim: μ ≤ 125; α = 0.05. Sample statistics: =
120; s =12; n = 28
Fail to reject H0; there is not enough evidence to
reject the claim
Reject H0; There is enough evidence to reject the
claim
Fail to reject H0; There is not enough evidence to
support the claim
Reject H0; There is enough evidence...
Test the claim about the population mean mu at the level of significance alpha. Assume the...
Test the claim about the population mean mu at the level of
significance alpha. Assume the population is normally distributed.
Claim: mu greater than 11; alpha equals0.05; sigmaequals1.2
Sample statistics: x overbar equals11.3, n equals50
Use a t-test to test the claim about the population mean μ at the given level...
Use a t-test to test the claim about the population mean μ at
the given level of significance alphaα using the given sample
statistics. Assume the population is normally distributed.
Claim: μ= 51,800; alphaα= 0.05
Sample statistics:
x overbar= 50,889, s=2800, n=18
What are the null and alternative hypotheses? Choose the
correct answer below.
A.
H0: μ= 51,800
Ha: μ≠ 51,800
B.
H0:μ≤ 51,800
Ha: μ> 51,800
C.
H0: μ ≥ 51,800
Ha: μ < 51,800
D.
H0: μ ≠...
Test the claim about the population mean, mu, at the given level of significance using the...
Test the claim about the population mean, mu, at the given
level of significance using the given sample statistics. Claim:
mu: 50; alpha=0.03; sigmaequals3.63. Sample statistics: x
overbarequals48.7, nequals69What are the critical values?
Test the claim about the population mean, muμ , at the given level of significance using...
Test the claim about the population mean,
muμ ,
at the given level of significance using the given sample
statistics. Claim:
muμequals=4040 ;
alphaαequals=0.060.06 ;
sigmaσequals=3.873.87.
Sample statistics:
x overbarxequals=38.738.7 ,
nequals=7676
Identify the null and alternative hypotheses. Choose the correct
answer below.
A.
Upper H 0H0 :
muμequals=4040
Upper H Subscript aHa :
muμgreater than>4040
B.
Upper H 0H0 :
muμgreater than>4040
Upper H Subscript aHa :
muμequals=4040
C.
Upper H 0H0 :
muμequals=4040
Upper H Subscript aHa :...
You wish to test the following claim at a significance level of α=0.02 H0:μ=62.5 H1:μ>62.5 You...
You wish to test the following claim at a significance level of
α=0.02
H0:μ=62.5
H1:μ>62.5
You believe the population is normally distributed, but you do not
know the standard deviation. You obtain a sample of size 64 with
mean 66.5 and a standard deviation of 12.7.
What is the test statistic for this sample? (Report answer accurate
to 3 decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to
4 decimal places.)
p-value =
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...
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