Answered: The following data represent the pH of…

Name: The following data represent the pH of rain for a random sample of 12
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Description: The following data represent the pH of rain for a random sample of 12 rain dates. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. (5.58, 5.72, 4.99, 4.

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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The following data represent the pH of rain for a random sample of 12 rain dates. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. (5.58, 5.72, 4.99, 4.80, 5.02, 4.60, 4.74, 5.19, 4.61, 4.76, 4.56, 5.69)

Construct and interpret a

99%

confidence interval for the mean pH of rainwater. Select the correct choice below and fill in the answer boxes to complete your choice.

(Use ascending order. Round to two decimal places as needed.)

If repeated samples are taken,

99%

of them will have a sample pH of rain water between

______

and

______.

There is

99%

confidence that the population mean pH of rain water is between

______

and

______

There is a

99%

probability that the true mean pH of rain water is between

______

and

______.

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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