Answered: Stoaches are fictional creatures that…

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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Stoaches are fictional creatures that feed on funistrada. According to Wikipedia, adult stoach weights are normally distributed, with a mean of 430 g and a standard deviation of 64 g. You weigh a random sample of 60 stoaches, and find a sample mean weight of 415.1 g. Assume Wikipedia is correct about the standard deviation. What is the ? p -value for a two-sided hypothesis test that Wikipedia is also right about the mean weight? (Give 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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