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 thefollowing hypotheses:Ho: H= 120 versus H₂ μ< 120Suppose the mean and standard deviation obtained were based on a sample of size 25 rather than 100. How would the P-value change?The P-value would remain unchanged because the variability measured by the standard deviation stays the same.The P-value would remain unchanged because the difference between x and the hypothesized value μ = 120 isunchanged.The P-value would be larger when using the smaller sample size.The P-value would be smaller when using the smaller sample size.

Hypothesis is an assumption that is being tested.

Answered: How would the P-value change? The…

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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