Question
In: Statistics and Probability
Suppose we are comparing average scores on a test for two groups that used different study...
Suppose we are comparing average scores on a test for two groups that used different study techniques. The null hypothesis is that μ1 - μ2 = 0 A. If μ1 = 84 and μ2 = 80, which of the following are true (select all that apply)?
If we fail to reject H0, we are making the correct decision
If we fail to reject H0, we are committing a Type I error
If we fail to reject H0, we are committing a Type II error
If we reject H0, we making the correct decision
If we reject H0, we are committing a Type I error
If we reject H0, we are committing a Type II error
B.
If μ1 = 76 and μ2 = 76, which of the following are true (select all that apply)?
If we fail to reject H0, we are making the correct decision
If we fail to reject H0, we are committing a Type I error
If we fail to reject H0, we are committing a Type II error
If we reject H0, we making the correct decision
If we reject H0, we are committing a Type I error
If we reject H0, we are committing a Type II error
Solutions
orchestra answered 2 years agoRelated Solutions
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We want to test to see whether average SAT scores for science majors equals the average...
We want to test to see whether average SAT scores for science
majors equals the average SAT scores for non-science majors. We
collect the following sample SAT scores:
Science
Non-Science
440
1000
1550
1010
1400
970
370
1020
600
980
800
1000
1390
1080
1100
1500
1480
450
1430
Use Excel to test this hypothesis at the 0.05 level by first
testing variances (at the 0.05 level) and then means
We want to test to see whether average SAT scores for science majors equals the average...
We want to test to see whether average SAT scores for science
majors equals the average SAT scores for non-science majors. We
collect the following sample SAT scores:
Science
Non-Science
440
1000
1550
1010
1400
970
370
1020
600
980
800
1000
1390
1080
1100
1500
1480
450
1430
Use Excel to test this hypothesis at the 0.05 level by first
testing variances (at the 0.05 level) and then means. Submit your
Excel...
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Q1.
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data is below:
Married Men: average happiness rating = 8.7; standard deviation
= 1.4; n =100
Single Men: average happiness rating = 7.9; standard deviation =
1.2; n =80
Test whether the difference between the means of the two groups
is significant at an alpha
(significance level) of .10.
(a) What are the null and alternate hypotheses?
(b) Draw the picture of...
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z scores are useful for A) finding the average B) measuring
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True or false
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True or False
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The following scores are from an independent-measures study comparing two treatment conditions. (Be sure to include...
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a. Use an independent -measures t-test with a = 0.05 to
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b. Use an ANOVA with a = 0.05 to determine whether there is a
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find that F = t2.
Treatment I Treatment II
10
7
n=16
8
4
g=120...
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