In this problem, we explore the effect on the standard deviation of multiplying each data value in a data set by the same constant. Consider the data set 5, 13, 6, 12, 14. (a) Use the defining formula, the computation formula, or a calculator to compute s. (Round your answer to one decimal place.) S = 7.6 (b) Multiply each data value by 8 to obtain the new data set 40, 104, 48, 96, 112. Compute s. (Round your answer to one decimal place.) = S (c) Compare the results of parts (a) and (b). In general, how does the standard deviation change if each data value is multiplied by a constant c? Multiplying each data value by the same constant c results in the standard deviation being |c| times smaller. Multiplying each data value by the same constant c results in the standard deviation increasing by c units. Multiplying each data value by the same constant c results in the standard deviation remaining the same. OMultiplying each data value by the same constant c results in the standard deviation being |c| times as large.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
icon
Concept explainers
Topic Video
Question
**Exploring the Effect on Standard Deviation**

In this problem, we will explore the effect on the standard deviation of multiplying each data value in a data set by the same constant. Consider the data set 5, 13, 6, 12, 14.

**(a)** Use the defining formula, the computation formula, or a calculator to compute \( s \). (Round your answer to one decimal place.)
\[ s = 7.6 \]

**(b)** Multiply each data value by 8 to obtain the new data set 40, 104, 48, 96, 112. Compute \( s \). (Round your answer to one decimal place.)
\[ s = \]

**(c)** Compare the results of parts (a) and (b). In general, how does the standard deviation change if each data value is multiplied by a constant \( c \)?

- \( \bigcirc \) Multiplying each data value by the same constant \( c \) results in the standard deviation being \(|c|\) times smaller.
- \( \bigcirc \) Multiplying each data value by the same constant \( c \) results in the standard deviation increasing by \( c \) units.
- \( \bigcirc \) Multiplying each data value by the same constant \( c \) results in the standard deviation remaining the same.
- \( \bigcirc \) Multiplying each data value by the same constant \( c \) results in the standard deviation being \(|c|\) times as large.

**(d)** You recorded the weekly distances you bicycled in miles and computed the standard deviation to be \( s = 3.3 \) miles. Your friend wants to know the standard deviation in kilometers. Do you need to redo all the calculations?

- \( \bigcirc \) Yes
- \( \bigcirc \) No

Given \( 1 \text{ mile} \approx 1.6 \text{ kilometers} \), what is the standard deviation in kilometers? (Enter your answer to two decimal places.)
\[ s = \text{_____} \text{ km} \]

**Need Help?**
- Read It
- Watch It
Transcribed Image Text:**Exploring the Effect on Standard Deviation** In this problem, we will explore the effect on the standard deviation of multiplying each data value in a data set by the same constant. Consider the data set 5, 13, 6, 12, 14. **(a)** Use the defining formula, the computation formula, or a calculator to compute \( s \). (Round your answer to one decimal place.) \[ s = 7.6 \] **(b)** Multiply each data value by 8 to obtain the new data set 40, 104, 48, 96, 112. Compute \( s \). (Round your answer to one decimal place.) \[ s = \] **(c)** Compare the results of parts (a) and (b). In general, how does the standard deviation change if each data value is multiplied by a constant \( c \)? - \( \bigcirc \) Multiplying each data value by the same constant \( c \) results in the standard deviation being \(|c|\) times smaller. - \( \bigcirc \) Multiplying each data value by the same constant \( c \) results in the standard deviation increasing by \( c \) units. - \( \bigcirc \) Multiplying each data value by the same constant \( c \) results in the standard deviation remaining the same. - \( \bigcirc \) Multiplying each data value by the same constant \( c \) results in the standard deviation being \(|c|\) times as large. **(d)** You recorded the weekly distances you bicycled in miles and computed the standard deviation to be \( s = 3.3 \) miles. Your friend wants to know the standard deviation in kilometers. Do you need to redo all the calculations? - \( \bigcirc \) Yes - \( \bigcirc \) No Given \( 1 \text{ mile} \approx 1.6 \text{ kilometers} \), what is the standard deviation in kilometers? (Enter your answer to two decimal places.) \[ s = \text{_____} \text{ km} \] **Need Help?** - Read It - Watch It
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 2 images

Blurred answer
Knowledge Booster
Centre, Spread, and Shape of a Distribution
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman