Answered: What might you conclucee if a random…

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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Question

Suppose a geyser has a mean time between eruptions of 98 minutes. If the interval of time between the eruptions is normally distributed with standard deviation 27 minutes, answer the following questions.

E) What might you conclucee if a random sample of 28 time intervels bewteen eruptions has a mean longer than 109 mintues? Choose the best answer below

A. The polulation mean must be less than 98, since the probality is low

B.the population mean is 98 mintues,and this of a typical sampling

C.The popluation mean may be greater than 98

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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