This dates are of a normal distributionfind the interval of 95% of trust with these dates 45304427211940421515233929311715394645391926204541Write the answer in form: (34.56,43.45)

Answered: This dates are of a normal distribution…

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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This dates are of a normal distribution

find the interval of 95% of trust with these dates

45	30	44	27	21
19	40	42	15	15
23	39	29	31	17
15	39	46	45	39
19	26	20	45	41

Write the answer in form: (34.56,43.45)

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.

Expert Solution

Step 1

The given dates are follow normal distribution.

Step 2

Confidence interval:

Calculate the sample mean and standard deviation of the given dates using Excel is as follows:

Degrees of freedom = n – 1 = 25 – 1 = 24.

Calculate the critical value using Excel is as follows:

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