Question
In: Statistics and Probability
Test the claim that the mean GPA of night students is significantly different than 2.5 at...
Test the claim that the mean GPA of night students is
significantly different than 2.5 at the 0.05 significance
level.
The null and alternative hypothesis would be:
H0:p≥0.625H0:p≥0.625
H1:p<0.625H1:p<0.625
H0:p≤0.625H0:p≤0.625
H1:p>0.625H1:p>0.625
H0:p=0.625H0:p=0.625
H1:p≠0.625H1:p≠0.625
H0:μ≥2.5H0:μ≥2.5
H1:μ<2.5H1:μ<2.5
H0:μ=2.5H0:μ=2.5
H1:μ≠2.5H1:μ≠2.5
H0:μ≤2.5H0:μ≤2.5
H1:μ>2.5H1:μ>2.5
The test is:
right-tailed
left-tailed
two-tailed
Based on a sample of 70 people, the sample mean GPA was 2.48 with a
standard deviation of 0.08
The test statistic is: (to 2 decimals)
The p-value is: (to 2 decimals)
Based on this we:
- Reject the null hypothesis
- Fail to reject the null hypothesis
Solutions
Expert Solution
This is two-tailed test
TS = -2.09
p-value = 0.04
we reject the null hypothesis
Please rate
orchestra answered 2 years agoRelated Solutions
Test the claim that the mean GPA of night students is significantly different than the mean...
Test the claim that the mean GPA of night students is
significantly different than the mean GPA of day students at the
0.2 significance level.
The null and alternative hypothesis would be:
H0:μN=μD
H1:μN≠μD
H0:pN=pD
H1:pN≠pD
H0:μN≤μD
H1:μN>μD
H0:pN≤pD
H1:pN>pD
H0:μN≥μD
H1:μN<μD
H0:pN≥pD
H1:pN<pD
The test is:
two-tailed
right-tailed
left-tailed
The sample consisted of 70 night students, with a sample mean GPA
of 3.41 and a standard deviation of 0.03, and 70 day students, with
a sample mean GPA of...
Test the claim that the mean GPA of night students is significantly different than 3.1 at...
Test the claim that the mean GPA of night students is
significantly different than 3.1 at the 0.01 significance
level.
The null and alternative hypothesis would be:
H0:μ=3.1H0:μ=3.1
H1:μ≠3.1H1:μ≠3.1
H0:μ=3.1H0:μ=3.1
H1:μ<3.1H1:μ<3.1
H0:p=0.775H0:p=0.775
H1:p>0.775H1:p>0.775
H0:μ=3.1H0:μ=3.1
H1:μ>3.1H1:μ>3.1
H0:p=0.775H0:p=0.775
H1:p<0.775H1:p<0.775
H0:p=0.775H0:p=0.775
H1:p≠0.775H1:p≠0.775
The test is:
two-tailed
left-tailed
right-tailed
Based on a sample of 65 people, the sample mean GPA was 3.14 with a
standard deviation of 0.05
The test statistic is: (to 2 decimals)
The positive critical value is: (to 2 decimals)
Based on this...
Test the claim that the mean GPA of night students is significantly different than 2.7 at...
Test the claim that the mean GPA of night students is
significantly different than 2.7 at the 0.02 significance level.
The null and alternative hypothesis would be: H 0 : μ ≤ 2.7 H 1 : μ
> 2.7 H 0 : p ≥ 0.675 H 1 : p < 0.675 H 0 : p ≤ 0.675 H 1 : p
> 0.675 H 0 : μ ≥ 2.7 H 1 : μ < 2.7 H 0 : μ =...
1. Test the claim that the mean GPA of night students is significantly different than the...
1. Test the claim that the mean GPA of night students is
significantly different than the mean GPA of day students at the
0.1 significance level.
The null and alternative hypothesis would be:
H0:pN≤pDH0:pN≤pD
Ha:pN>pDHa:pN>pD
H0:pN≥pDH0:pN≥pD
Ha:pN<pDHa:pN<pD
H0:μN≥μDH0:μN≥μD
Ha:μN<μDHa:μN<μD
H0:μN≤μDH0:μN≤μD
Ha:μN>μDHa:μN>μD
H0:μN=μDH0:μN=μD
Ha:μN≠μDHa:μN≠μD
H0:pN=pDH0:pN=pD
Ha:pN≠pDHa:pN≠pD
The test is:
right-tailed
left-tailed
two-tailed
The sample consisted of 12 night students, with a sample mean GPA
of 3.13 and a standard deviation of 0.04, and 10 day students, with
a sample mean GPA...
**ASAP** Test the claim that the mean GPA of night students is significantly different than 2.8...
**ASAP**
Test the claim that the mean GPA of night students is
significantly different than 2.8 at the 0.1 significance
level.
The null and alternative hypothesis would be:
H0:p=0.7H0:p=0.7
H1:p<0.7H1:p<0.7
H0:p=0.7H0:p=0.7
H1:p>0.7H1:p>0.7
H0:μ=2.8H0:μ=2.8
H1:μ>2.8H1:μ>2.8
H0:μ=2.8H0:μ=2.8
H1:μ<2.8H1:μ<2.8
H0:p=0.7H0:p=0.7
H1:p≠0.7H1:p≠0.7
H0:μ=2.8H0:μ=2.8
H1:μ≠2.8H1:μ≠2.8
The test is:
left-tailed
two-tailed
right-tailed
Based on a sample of 35 people, the sample mean GPA was 2.85 with a
standard deviation of 0.04
The p-value is: (to 2 decimals)
Based on this we:
Reject the null hypothesis
Fail to...
Test the claim that the mean GPA of Orange Coast students is significantly different than the...
Test the claim that the mean GPA of Orange Coast students is
significantly different than the mean GPA of Coastline students at
the 0.2 significance level.
The null and alternative hypothesis would be:
H0:pO≥pCH0:pO≥pC
H1:pO<pCH1:pO<pC
H0:μO=μCH0:μO=μC
H1:μO≠μCH1:μO≠μC
H0:μO≥μCH0:μO≥μC
H1:μO<μCH1:μO<μC
H0:μO≤μCH0:μO≤μC
H1:μO>μCH1:μO>μC
H0:pO=pCH0:pO=pC
H1:pO≠pCH1:pO≠pC
H0:pO≤pCH0:pO≤pC
H1:pO>pCH1:pO>pC
The test is:
left-tailed
right-tailed
two-tailed
The sample consisted of 20 Orange Coast students, with a sample
mean GPA of 2.06 and a standard deviation of 0.02, and 20 Coastline
students, with a sample mean...
Test the claim that the mean GPA of Orange Coast students is significantly different than the...
Test the claim that the mean GPA of Orange Coast students is
significantly different than the mean GPA of Coastline students at
the 0.2 significance level.
The null and alternative hypothesis would be:
H0:pO=pCH0:pO=pC
H1:pO≠pCH1:pO≠pC
H0:μO≥μCH0:μO≥μC
H1:μO<μCH1:μO<μC
H0:μO≤μCH0:μO≤μC
H1:μO>μCH1:μO>μC
H0:μO=μCH0:μO=μC
H1:μO≠μCH1:μO≠μC
H0:pO≤pCH0:pO≤pC
H1:pO>pCH1:pO>pC
H0:pO≥pCH0:pO≥pC
H1:pO<pCH1:pO<pC
The test is:
left-tailed
two-tailed
right-tailed
The sample consisted of 20 Orange Coast students, with a sample
mean GPA of 2.79 and a standard deviation of 0.07, and 20 Coastline
students, with a sample mean...
Test the claim that the mean GPA of night students is larger than the mean GPA...
Test the claim that the mean GPA of night students is larger
than the mean GPA of day students at the .025 significance
level.
The null and alternative hypothesis
H0:μN=μD
H1:μN>μD
The Test is Right Tailed
The sample consisted of 30 night students, with a sample mean
GPA of 3.23 and a standard deviation of 0.02, and 60 day students,
with a sample mean GPA of 3.19 and a standard deviation of
0.06.
The test statistic is:
The critical value...
Test the claim that the mean GPA of night students is larger than 2.6 at the...
Test the claim that the mean GPA of night students is larger
than 2.6 at the 0.10 significance level.
- The null and alternative hypothesis would be:
- The test is:
A. two-tailed
B. right-tailed
C. left-tailed
- Based on a sample of 25 people, the sample mean GPA was 2.62
with a standard deviation of 0.05
The p-value is:
- Based on this we:
A. Fail to reject the null hypothesis
B. Reject the null hypothesis
Test the claim that the mean GPA of night students is larger than 3.3 at the...
Test the claim that the mean GPA of night students is larger
than 3.3 at the .05 significance level.
The null and alternative hypothesis would be:
H0:p=0.825H0:p=0.825
H1:p≠0.825H1:p≠0.825
H0:μ=3.3H0:μ=3.3
H1:μ>3.3H1:μ>3.3
H0:μ=3.3H0:μ=3.3
H1:μ≠3.3H1:μ≠3.3
H0:p=0.825H0:p=0.825
H1:p<0.825H1:p<0.825
H0:μ=3.3H0:μ=3.3
H1:μ<3.3H1:μ<3.3
H0:p=0.825H0:p=0.825
H1:p>0.825H1:p>0.825
The test is:
right-tailed
two-tailed
left-tailed
Based on a sample of 45 people, the sample mean GPA was 3.32 with a
standard deviation of 0.08
The test statistic is: (to 2 decimals)
The critical value is: (to 2 decimals)
Based on this we:
Fail...
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