Answered: Use technology and the given confidence…

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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100%

Use technology and the given confidence level and sample data to find the confidence interval for the population mean

μ.

Assume that the population does not exhibit a normal distribution.

Weight lost on a diet:

98% confidence

n=61

x=2.0 kg

s=3.1 kg

What is the confidence interval for the population mean

μ?

Use technology and the given confidence level and sample data to find the confidence interval for the population mean µ. Assume that the population does not exhibit a normal distribution.
Weight lost on a diet:
98% confidence
n= 61
x=2.0 kg
s= 3.1 kg
What is the confidence interval for the population mean u?
kg <µ< kg (Round to one decimal place as needed.)
Is the confidence interval affected by the fact that the data appear to be from a population that is not normally distributed?
O A. No, because the population resembles a normal distribution.
O B. Yes, because the sample size is not large enough.
O C. Yes, because the population does not exhibit a normal distribution.
O D. No, because the sample size is large enough.

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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