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QUESTION 1 When engaging in weight-control (fitness/fat burning) types of exercise, a person is expected to attain approximately 60% of his or her maximum heart
QUESTION 1
- When engaging in weight-control (fitness/fat burning) types of exercise, a person is expected to attain approximately 60% of his or her 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. To determine this, we test the following hypothesesH0:= 120 versusHa:< 120 and obtain aP-value of 0.0023. Based on this test and using a significance level of 0.05, what should we conclude?
- Reject the null hypothesis (P0.05)
- Reject the null hypothesis (P> 0.05)
- Fail to reject the null hypothesis (P0.05)
- Fail to reject the null hypothesis (P> 0.05)
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Mathematical Analysis For Quantitative Finance
Authors: Daniele Ritelli, Giulia Spaletta
1st Edition
1351245104, 9781351245104
