Answered: Americans tend to dine out multiple…

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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Americans tend to dine out multiple times per week. The number of times a sample of 20 families dined out last week provides the following data.
7 1 6 4 8 4 0 3 1 3
4 1 2 4 1 1 5 7 4 1

Compute the variance and standard deviation. (Round your answers to two decimal places.)
variance
standard deviation
(e)
The skewness measure for these data is 0.46. Comment on the shape of this distribution.
The skewness measure of 0.46 indicates the data are somewhat
---Select---
.
Is it the shape you would expect? Why or why not?

---Select---
, most people dine out a relatively few times per week and a few families dine out very frequently, therefore we would expect the data to be
---Select---
.
(f)
Compute the lower and upper limits
lower limit
upper limit
Do the data contain outliers?

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