When engaging in weight-control (fitness/fat burning) types of exercise, a person is expected to attain approximately 60% of hisor her maximum heart rate. For 20-year-olds, this rate is approximately 120 bpm. A simple random sample of one hundred20-year-olds was taken, and the sample mean was found to be 107 bpm, with a standard deviation of 45 bpm. Researcherswonder if this is evidence to conclude that the expected level is actually lower than 120 bpm. To determine this, we test thehypotheses:Ho = 120 versus H₁ μ< 120.What is a 95% confidence interval for the population mean weight control heart rate, μ, of 20-year-olds?107 + 45107 + 4.5107 + 7.5107 + 8.9

sample size (n) = 100sample mean ( x¯ ) =107sample standard deviation (s) =4595% ci for population…

Answered: When engaging in weight-control…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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 thirty 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. Compute the p-value: O 0.023 O 0.062 O 0.002 O 0.02
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 thirty 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. Report a 95% confidence region for the mean level of heart rate for this group. the mean level of heart rate is lower than 120.96 the mean level of heart rate is greater than 114.47 the mean level of heart rate is greater than 117.67 the mean level of heart rate is lower than 114.47
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