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. What are the null and alternative hypotheses that these researchers wanted to test? Ho: <120 versus H₁ : x = 120 Ho: x= 120 versus H₂ x < 120 Ho = 120 versus Hau < 120 <120 versus H₂ μ = 120 Ho
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. What are the null and alternative hypotheses that these researchers wanted to test? Ho: <120 versus H₁ : x = 120 Ho: x= 120 versus H₂ x < 120 Ho = 120 versus Hau < 120 <120 versus H₂ μ = 120 Ho
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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![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.
What are the null and alternative hypotheses that these researchers wanted to test?
Ho: <120 versus H₁ : x = 120
Ho: x= 120 versus H₁ x < 120
Ho u = 120 versus H₂ μ< 120
Ho: <120 versus H₂ μ = 120](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffe4effe8-117b-4af9-aba2-aaac6fd6710d%2F4557fab8-a61f-4312-bc13-0351e9181e2e%2Fvi8cy2_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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.
What are the null and alternative hypotheses that these researchers wanted to test?
Ho: <120 versus H₁ : x = 120
Ho: x= 120 versus H₁ x < 120
Ho u = 120 versus H₂ μ< 120
Ho: <120 versus H₂ μ = 120
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