Answered: Scores derived from a patient…

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

Scores derived from a patient satisfaction survey are Normally distributed with standard deviation 7.5, with high scores indicating high satisfaction. You collect a sample of n = 36 from a hospital in Reno and you find a sample mean of 48.8. You want to test if the mean score in the Hospital is less than 50.

Question 4. What is the p-value for the test?
A. 0.6745
B. 0.1151
C. 0.3371
D. 0.1685

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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