Answered: The diastolic blood pressure for…

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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Question

Please see below. I am only given one opportunity at this, so please be certain of your work. Need help!!

The diastolic blood pressure for American women ages 18 to 44 has an approximately Normal distribution with mean = 75 mm Hg. We suspect that regular exercise will lower the blood pressure. A sample of 25 women who jog at least 5 miles per week gives sample mean blood pressure of 71 mm Hg and standard deviation of 10 mm Hg. Is this good evidence that the mean diastolic blood pressure for the population of regular exercisers is lower than 75 mm Hg?

2-sample test for proportions

t-test for means

2-sample test for means

z-test for means

z-test for proportions

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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