Answered: A physician claims that joggers’…

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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A physician claims that joggers’ maximal volume oxygen uptake is greater than the average of all adults. A random sample of 15 joggers has a mean of 40.6 milliliters per kilogram (ml/kg) and a standard deviation of 6 ml/kg. It is known that maximal volume oxygen uptake is normally distributed. If the average of all adults is 36.7 ml/kg, test at α = 0.05 that joggers’ maximal volume oxygen uptake is more than that of all adults.

Name of Test:

State and check the assumptions for a hypothesis test.

Find the sample statistics, test statistic, and p-value. Label everything with letters. Draw the normal curve and label the critical region(s).

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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