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Name: Do left handed starting pitchers pitch more innings per game on averag
Uploaded: 2024-03-20T07:07:12.000Z
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Description: Do left handed starting pitchers pitch more innings per game on average than right handed starting pitchers? A researcher looked at ten randomly selected left handed starting pitchers' games and nine randomly selected right handed pitchers' games. T

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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Do left handed starting pitchers pitch more innings per game on average than right handed starting pitchers? A researcher looked at ten randomly selected left handed starting pitchers' games and nine randomly selected right handed pitchers' games. The table below shows the results.

Left: 8 6 5 7 6 5 6 7 7

Right: 5 7 4 5 3 6 4 4

Assume that both populations follow a normal distribution. What can be concluded at the the αα = 0.01 level of significance level of significance?

For this study, we should use

The null and alternative hypotheses would be:

`H₀:`

`H_a:`

The test statistic = (please show your answer to 4 decimal places.)
The p-value = (Please show your answer 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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