Question
In: Statistics and Probability
The mean of sample A is significantly different than the mean of sample B. Sample A:...
The mean of sample A is significantly different than the mean of sample B. Sample A: 59 46 74 62 87 73 Sample B: 53 67 81 57 93 79 Use a two-tailed t-test of independent samples for the above hypothesis and data. What is the p-value? (Answer to 3 decimal places)
Solutions
orchestra answered 1 year 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 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...
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 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 proportion of men who own cats is significantly different than the...
Test the claim that the proportion of men who own cats is
significantly different than the proportion of women who own cats
at the 0.2 significance level.
The null and alternative hypothesis would be:
H0:pM=pFH0:pM=pF
H1:pM>pFH1:pM>pF
H0:pM=pFH0:pM=pF
H1:pM<pFH1:pM<pF
H0:pM=pFH0:pM=pF
H1:pM≠pFH1:pM≠pF
H0:μM=μFH0:μM=μF
H1:μM<μFH1:μM<μF
H0:μM=μFH0:μM=μF
H1:μM>μFH1:μM>μF
H0:μM=μFH0:μM=μF
H1:μM≠μFH1:μM≠μF
The test is:
two-tailed
left-tailed
right-tailed
Based on a sample of 40 men, 30% owned cats
Based on a sample of 20 women, 50% owned cats
The test statistic is: (to 2 decimals)
The p-value...
Test the claim that the proportion of men who own cats is significantly different than the...
Test the claim that the proportion of men who own cats is
significantly different than the proportion of women who own cats
at the 0.02 significance level.
The null and alternative hypothesis would be:
H0:μM=μFH0:μM=μF
H1:μM≠μFH1:μM≠μF
H0:pM=pFH0:pM=pF
H1:pM≠pFH1:pM≠pF
H0:pM=pFH0:pM=pF
H1:pM<pFH1:pM<pF
H0:μM=μFH0:μM=μF
H1:μM<μFH1:μM<μF
H0:μM=μFH0:μM=μF
H1:μM>μFH1:μM>μF
H0:pM=pFH0:pM=pF
H1:pM>pFH1:pM>pF
The test is:
right-tailed
two-tailed
left-tailed
Based on a sample of 60 men, 45% owned cats
Based on a sample of 60 women, 60% owned cats
The test statistic is: (to 2 decimals)
The p-value...
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