Answered: Study for researching blood pressure…

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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Study for researching blood pressure where the mean systolic blood pressure is 140 and the standard deviation is 15. Assume the population is normally distributed with 95% confidence. How large is the margin of error if the sample size is set to 50. What is the minimum value of n, if the study
must have a margin of error of 1.

Can you show your work on a distribution graph? Thank you very much!

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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