In the following research, identify 1. test type, 2. null hypothesis, 3. alternate hypothesis, 4. test...
In the following research, identify 1. test type, 2. null hypothesis, 3. alternate hypothesis, 4. test statistic, 5. p-value, and 6. conclusion.
When engaging in weight-control (fitness/fat burning) types of exercise, a person is expected to attain about 60% of their maximum heart rate. For 20-year-olds, this rate is approximately 120 bpm. A simple random sample of one hundred 20-year-olds was taken, and the sample mean was found to be 107 bpm with a standard deviation of 45 bpm. Researchers wonder if this is evidence to conclude that the expected level is actually lower than 120 bpm.
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Test type: |
Example: 2-sided, 1 sample t-test |
|
Null hypothesis: |
Example: mean finger length on right hand is 20.6 OR µ(finger length) = 20.6 |
|
Alt hypothesis: |
Example: mean finger length on right hand is >20.6 OR µ(finger length) > 20.6 |
|
Test-statistic (t): |
# |
|
p-value: |
# |
|
Conclusion: |
Conclusions should interpret the test-statistic (sig/not sig), make a statement about the hypotheses (reject/fail to reject) and answer the research question. |
Homework Answers
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In the following research, identify 1. test type, 2. null
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tQuestion 12 0/1 pts Q38 When engaging in weight control (itness/fat burning) types of exercise, a 20-year old is expected to attain a heart rate of approximately 120 bpm. A simple random sample of 100 20-year-olds was taken, and the sample mean was found to be 107 bpm with a standard deviation of 45 bpm. Researchers wonder if this is evidence to conclude that the expected level is actually lower than 120 bpm. To determine this, we test the following...
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