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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 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 hypotheses OH:120, Ha: 120 Ο Η :μ = 120, H, :μ < 120 Ο Η:μ > 120, Ha:μ < 120 OH:120, Ha:μ = 120

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 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 hypotheses OH:120, Ha: 120 Ο Η :μ = 120, H, :μ < 120 Ο Η:μ > 120, Ha:μ < 120 OH:120, Ha:μ = 120

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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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 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 hypotheses O H: 120, Ha: 120 H: 120, Ha: 120 OH:120, Ho: <120 OH:120, Ha:μ = 120
Transcribed Image Text: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 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 hypotheses O H: 120, Ha: 120 H: 120, Ha: 120 OH:120, Ho: <120 OH:120, Ha:μ = 120
A 95% plus-four confidence interval for the true proportion of pills in the shipment that have failed to retain full potency is O 0.049 ± 0.0272. O 0.049 ± 0.0299. O 0.049 ± 0.0269. O 0.049 ± 0.0296. TA
Transcribed Image Text:A 95% plus-four confidence interval for the true proportion of pills in the shipment that have failed to retain full potency is O 0.049 ± 0.0272. O 0.049 ± 0.0299. O 0.049 ± 0.0269. O 0.049 ± 0.0296. TA
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