ONE SAMPLE T-TESTThe pH factor is a measure of the acidity and alkalinity of water. A reading of 7.0 is neutral; values in excessof 7.0 indicate alkalinity; those below 7.0 imply acidity. In one study, it is mentioned that the best chanceof catching bass occurs when the pH of the water is in the range 7.5 to 7.9. Suppose your suspect that acidrain is lowering the pH of your favourite fishing spot and you wish to determine whether the pH is lessthan 7.5. You obtained 10 samples and got the following data: 7.3, 7.4, 7.2, 7.0, 7.5,7.4,7.3,7.3,7.2 and7.1. Use 0.05 alpha.a. State the alternative and null hypothesis.b. Is the pH of the water samples less than 7.5?

Given data: 7.3, 7.4, 7.2, 7.0, 7.5, 7.4, 7.3, 7.3, 7.2, 7.1 n = 10 α = 0.05

Answered: ONE SAMPLE T-TEST The pH factor is 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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What is the difference between relative frequency and cumulative frequency? Choose the correct answer below. A. Relative frequency of a class is the number of observations in that class, while cumulative frequency of a class is the sum of all the frequencies. B. Relative frequency of a class is the proportion of the data in that class, while cumulative frequency of a class is the number of observations in that class. C. Relative frequency of a class is the percentage of the data that falls in that class, while cumulative frequency of a class is the sum of the frequencies of that class and all previous classes. O D. There is no difference between the two.
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