Answered: Assume the samples are random and…

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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Assume the samples are random and independent and the populations are normally distributed. A marine biologist claims that the mean fork length of yellowfin tuna is different in two zones in the eastern tropical pacific ocean. A sample of 26 yellowfin tuna collected in zone A has a mean fork length of 76.2 centimeters and a standard deviation of 16.5 centimeters. A sample of 31 yellowfin tuna collected in zone B has a mean fork length of 80.8 centimeters. and a standard deviation of 23.4 centimeters. At alpha=0.01, can you support the marine biologist's claim? Assume the population variance are equal. Also, what will be your conclusion

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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