All Greens is a franchise store that sells house plants and lawn and garden supplies. Although All Greens is a franchise, each store is owned and managed by private Sh individuals. Some friends have asked you to go into business with them to open a new All Greens store in the suburbs of San Diego. The national franchise headquarters sent 8. you the following information at your request. These data are about 27 All Greens stores in California. Each of the 27 stores has been doing very well, and you would like to use the information to help set up your own new store. The variables for which we have data are detailed below. X1 = annual net sales, in thousands of dollars = number of square feet of floor display in store, in thousands of square feet X2 = value of store inventory, in thousands of dollars Sh 1.1 Хз X4 = amount spent on local advertising, in thousands of dollars X5 = size of sales district, in thousands of families X6 = number of competing or similar stores in sales district A sales district was defined to be the region within a 5 mile radius of an All Greens store. X2 Xз 294 X4 X5 8.2 231 3 8.2 11 156 2.2 232 6.9 4.1 12 10 0.5 149 3 4.3 15 519 5.5 600 12 16.1 Sh 7.5 437 4.4 567 10.6 14.1 487 4.8 571 11.8 12.7 4 299 3.1 512 8.1 10.1 10 195 2.5 347 7.7 8.4 12 20 1.2 212 3.3 2.1 15 68 0.6 102 4.9 4.7 570 5.4 788 17.4 12.3 1 Sh 3.5 428 4.2 577 10.5 14.0 464 4.7 535 11.3 15.0 3 15 0.6 163 2.5 2.5 14 65 1.2 168 4.7 3.3 11 98 1.6 151 4.6 2.7 10 398 4.3 342 5.5 16.0 4 161 2.6 196 7.2 6.3 13 Sh 9.3 397 3.8 453 10.4 13.9 497 5.3 518 11.5 16.3 528 12.3 615 278 16.0 6.5 5.6 99 0.8 2.8 14 0.5 1.1 142 3.1 1.6 12 347 3.6 461 9.6 11.3 341 3.5 382 9.8 11.5 5 Бh 6.0 507 5.1 590 12.0 15.7 400 8.6 517 7.0 12.0 8.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Concept explainers

Question

(a) Generate summary statistics, including the mean and standard deviation of each variable. Compute the coefficient of variation for each variable. (Use 2 decimal places.)

	x	s	CV
x₁			%
x₂			%
x₃			%
x₄			%
x₅			%
x₆			%

(b) For each pair of variables, generate the correlation coefficient r. For all pairs involving x₁, compute the corresponding coefficient of determination r². (Use 3 decimal places.)

	r	r²
x₁, x₂
x₁, x₃
x₁, x₄
x₁, x₅
x₁, x₆
x₂, x₃
x₂, x₄
x₂, x₅
x₂, x₆
x₃, x₄
x₃, x₅
x₃, x₆
x₄, x₅
x₄, x₆
x₅, x₆

All Greens is a franchise store that sells house plants and lawn and garden supplies. Although All Greens is a franchise, each store is owned and managed by private
Sh
individuals. Some friends have asked you to go into business with them to open a new All Greens store in the suburbs of San Diego. The national franchise headquarters sent
8.
you the following information at your request. These data are about 27 All Greens stores in California. Each of the 27 stores has been doing very well, and you would like to
use the information to help set up your own new store. The variables for which we have data are detailed below.
X1
= annual net sales, in thousands of dollars
= number of square feet of floor display in store, in thousands of square feet
X2
= value of store inventory, in thousands of dollars
Sh
1.1
Хз
X4 = amount spent on local advertising, in thousands of dollars
X5
= size of sales district, in thousands of families
X6 = number of competing or similar stores in sales district
A sales district was defined to be the region within a 5 mile radius of an All Greens store.
X2
Xз
294
X4
X5
8.2
231
3
8.2
11
156
2.2
232
6.9
4.1
12
10
0.5
149
3
4.3
15
519
5.5
600
12
16.1
Sh
7.5
437
4.4
567
10.6
14.1
487
4.8
571
11.8
12.7
4
299
3.1
512
8.1
10.1
10
195
2.5
347
7.7
8.4
12
20
1.2
212
3.3
2.1
15
68
0.6
102
4.9
4.7
570
5.4
788
17.4
12.3
1
Sh
3.5
428
4.2
577
10.5
14.0
464
4.7
535
11.3
15.0
3
15
0.6
163
2.5
2.5
14
65
1.2
168
4.7
3.3
11
98
1.6
151
4.6
2.7
10
398
4.3
342
5.5
16.0
4
161
2.6
196
7.2
6.3
13
Sh
9.3
397
3.8
453
10.4
13.9
497
5.3
518
11.5
16.3
528
12.3
615
278
16.0
6.5
5.6
99
0.8
2.8
14
0.5
1.1
142
3.1
1.6
12
347
3.6
461
9.6
11.3
341
3.5
382
9.8
11.5
5
Бh
6.0
507
5.1
590
12.0
15.7
400
8.6
517
7.0
12.0
8.

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Correlation, Regression, and Association$

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