Decks have become very popular items for American homeowners. Lumber yards sell many styles of decks during the summer months, but they all use the same type of nail. The question that always arises is how many nails to buy. If 800 nails are needed, how many grams of nails should be purchased? The weights (in grams) of the following 50 nails should help to answer the question. 9.63 8.73 8.98 8.88 9.25 8.79 9.42 8.69 8.93 8.27 8.82 8.66 8.90 8.31 9.15 9.41 8.56 8.82 8.58 8.43 8.05 8.56 8.55 8.88 8.29 8.79 8.51 8.85 9.34 9.21 8.38 8.51 8.41 8.58 9.21 8.27 8.76 9.26 8.59 8.71 8.51 9.20 8.24 8.57 8.85 8.69 8.85 9.08 9.40 8.36 (a) Group these data into seven classes using as class intervals (7.995, 8.245), (8.245, 8.495), and so on. (b) Construct a histogram. (c) Calculate the sample mean and sample standard deviation for either the grouped or the ungrouped data. (d) How many grams of nails would you recommend?

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
Question
100%
Solve using r studio or excel
Decks have become very popular items for American homeowners. Lumber yards
sell many styles of decks during the summer months, but they all use the same type
of nail. The question that always arises is how many nails to buy. If 800 nails are
needed, how many grams of nails should be purchased? The weights (in grams) of the
following 50 nails should help to answer the question.
9.63
8.73
8.98
8.88
9.42 8.69 8.93 8.27 8.82
9.41 8.56 8.82 8.58 8.43
8.29 8.79 8.51 8.85 9.34
8.58 9.21 8.27 8.76 9.26
9.20 8.24 8.57 8.85 8.69 8.85 9.08 9.40 9.25 8.79
8.66 8.90 8.31 9.15
8.05 8.56 8.55 8.88
9.21
8.38 8.51 8.41
8.59
8.36 8.71
8.51
(a) Group these data into seven classes using as class intervals (7.995, 8.245), (8.245,
8.495), and so on.
(b) Construct a histogram.
(c) Calculate the sample mean and sample standard deviation for either the grouped
or the ungrouped data.
(d) How many grams of nails would you recommend?
Transcribed Image Text:Decks have become very popular items for American homeowners. Lumber yards sell many styles of decks during the summer months, but they all use the same type of nail. The question that always arises is how many nails to buy. If 800 nails are needed, how many grams of nails should be purchased? The weights (in grams) of the following 50 nails should help to answer the question. 9.63 8.73 8.98 8.88 9.42 8.69 8.93 8.27 8.82 9.41 8.56 8.82 8.58 8.43 8.29 8.79 8.51 8.85 9.34 8.58 9.21 8.27 8.76 9.26 9.20 8.24 8.57 8.85 8.69 8.85 9.08 9.40 9.25 8.79 8.66 8.90 8.31 9.15 8.05 8.56 8.55 8.88 9.21 8.38 8.51 8.41 8.59 8.36 8.71 8.51 (a) Group these data into seven classes using as class intervals (7.995, 8.245), (8.245, 8.495), and so on. (b) Construct a histogram. (c) Calculate the sample mean and sample standard deviation for either the grouped or the ungrouped data. (d) How many grams of nails would you recommend?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 11 images

Blurred answer
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