Answered: Refer to the accompanying data display…

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

100%

Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below

a. What is the number of degrees of freedom that should be used for finding the critical value

tα/2?

b. Find the critical value

tα/2

corresponding to a

95%

confidence level.

c. Give a brief description of the number of degrees of freedom.

A.The number of degrees of freedom for a collection of sample data is the total number of sample values.

The number of degrees of freedom for a collection of sample data is the number ofunique, non-repeated sample values.

The number of degrees of freedom for a collection of sample data is the number of sample values that are determined after certain restrictions have been imposed on all data values.

The number of degrees of freedom for a collection of sample data is the number of sample values that can vary after certain restrictions have been imposed on all data values

TInterval

(13.046,22.15)

x=17.598

Sx=16.01712719

n=50

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