Answered: You wish to test the following at a…

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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You wish to test the following at a significance level of a =0.02.

Ho: p = 0.37

H1: p > 0.37

You obtaina sample size n = 120 in which there are 47 successful observations.

Use the normal distribution as an approximation for the binominal distribution.

a) The test statistic (z) for the data =

To 3 decimal places

b) The p-value for the sample =

To 4 decimal places

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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