In the past, trout in Clearwater Creek were 14.5 inches long on average. A recent sample of 36 trout from the creek found a = 14.2, s = 3. a. Build a 99% CI for the current mean length of trout in Clearwater Creek. Round all intermediate calculations to two decimals, then construct the Cl and enter like this: (min,max). Note: if you use a built-in Cl command on a calculator/computer, you might get marked wrong due to rounding. Use the formulas given in the text/notes. b. Use your Cl to decide whether the mean length of trout in Clearwater Creek has changed from 14.5 inches. No, the mean has not changed since the old value of u is right in the middle of the new Cl O No, the mean has probably not changed since the new Cl contains the old value of u O Yes, the mean has probably changed since the new Cl does not contain the old value of u O Yes, the mean has probably changed since the old value of u is not right in the middle of the new CI

In the past, trout in Clearwater Creek were 14.5 inches long on average. A recent sample of 36 trout from the creek found a = 14.2, s = 3. a. Build a 99% CI for the current mean length of trout in Clearwater Creek. Round all intermediate calculations to two decimals, then construct the Cl and enter like this: (min,max). Note: if you use a built-in Cl command on a calculator/computer, you might get marked wrong due to rounding. Use the formulas given in the text/notes. b. Use your Cl to decide whether the mean length of trout in Clearwater Creek has changed from 14.5 inches. No, the mean has not changed since the old value of u is right in the middle of the new Cl O No, the mean has probably not changed since the new Cl contains the old value of u O Yes, the mean has probably changed since the new Cl does not contain the old value of u O Yes, the mean has probably changed since the old value of u is not right in the middle of the new CI

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Description: In the past, trout in Clearwater Creek were 14.5 inches long on average. A recent sample of 36 trout fromthe creek found = 14.2, s 3.a. Build a 99% CI for the current mean length of trout in Clearwater Creek.Round all intermediate calculations to tw

MATLAB: An Introduction with Applications

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Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Concept explainers

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.

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Question

In the past, trout in Clearwater Creek were 14.5 inches long on average. A recent sample of 36 trout from
the creek found = 14.2, s 3.
a. Build a 99% CI for the current mean length of trout in Clearwater Creek.
Round all intermediate calculations to two decimals, then construct the Cl and enter like this: (min,max).
Note: if you use a built-in Cl command on a calculator/computer, you might get marked wrong due to
rounding. Use the formulas given in the text/notes.
b. Use your Cl to decide whether the mean length of trout in Clearwater Creek has changed from 14.5
inches.
No, the mean has not changed since the old value of u is right in the middle of the new Cl
O No, the mean has probably not changed since the new Cl contains the old value of u
O Yes, the mean has probably changed since the new CI does not contain the old value of u
O Yes, the mean has probably changed since the old value of u is not right in the middle of the new CI
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