I NEED THE ANSWER TO THE "NUMBER OF DUMMY VARIABLES"A manager of a local package delivery store believes that too many of the packages were damaged or lost. She extracts a sample of 75 packages with the following variables: the package number (Package), the status of the package (Status: Delivered, Damaged, or Lost), the delivery type (Delivery: Standard, Express, or Same day), and the size of the package (Size: S, M, L, and XL). A portion of the data is shown in the accompanying table. PackageStatusDeliverySize1DamagedStandardM2LostExpressL⋮⋮⋮⋮75DamagedSame dayM a)Transform the Delivery variable into dummy variables. Use the most frequent category as the reference category. How many dummy variables should be created? Which category of Delivery is the reference category?Number of dummy variables: ????Reference Category: Standard PackageStatusDeliverySize1DamagedStandardM2LostExpressL3LostStandardS4DeliveredStandardM5LostStandardM6LostSame dayM7LostStandardXL8LostExpressS9LostExpressL10DamagedStandardXL11DamagedStandardXL12DamagedExpressXL13DamagedStandardS14DeliveredExpressM15LostSame dayM16DamagedExpressM17DamagedStandardXL18DamagedStandardM19DamagedStandardL20DamagedStandardM21LostStandardM22LostExpressM23LostStandardL24DamagedSame dayL25DeliveredStandardL26DamagedStandardS27DamagedStandardM28LostStandardL29DeliveredSame dayS30LostSame dayM31DeliveredStandardM32LostStandardM33DamagedStandardXL34DeliveredExpressS35LostExpressS36DamagedStandardL37DeliveredStandardXL38DamagedSame dayXL39DamagedExpressL40LostStandardS41DeliveredStandardXL42DeliveredExpressS43DamagedSame dayS44LostStandardM45DeliveredExpressM46DeliveredStandardL47LostStandardS48LostExpressL49DamagedSame dayL50DeliveredStandardXL51LostStandardL52LostSame dayXL53DamagedStandardXL54LostExpressL55LostStandardL56DamagedExpressS57DamagedStandardL58LostStandardS59LostStandardXL60DamagedExpressS61DeliveredStandardL62DeliveredStandardXL63LostStandardL64DamagedExpressS65DeliveredSame dayL66DamagedStandardXL67DeliveredExpressXL68DeliveredStandardM69DamagedStandardL70DamagedSame dayL71DeliveredExpressM72DeliveredExpressXL73DamagedStandardM74DeliveredExpressS75DamagedSame dayM A manager of a local package delivery store believes that too many of the packages were damaged or lost. Sheextracts a sample of 75 packages with the following variables: the package number (Package), the status of thepackage (Status: Delivered, Damaged, or Lost), the delivery type (Delivery: Standard, Express, or Same day), andthe size of the package (Size: S, M, L, and XL). A portion of the data is shown in the accompanying table.PackageStatusDeliverySize1DamagedStandardM2LostExpressL75DamagedSame dayMpicture Click here for the Excel Data Filea. Transform the Delivery variable into dummy variables. Use the most frequent category as the referencecategory. How many dummy variables should be created? Which category of Delivery is the reference category?Number of dummy variables createdReference categoryStandard

Answered: A manager of a local package delivery…

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

Question

I NEED THE ANSWER TO THE "NUMBER OF DUMMY VARIABLES"

A manager of a local package delivery store believes that too many of the packages were damaged or lost. She extracts a sample of 75 packages with the following variables: the package number (Package), the status of the package (Status: Delivered, Damaged, or Lost), the delivery type (Delivery: Standard, Express, or Same day), and the size of the package (Size: S, M, L, and XL). A portion of the data is shown in the accompanying table.

Package	Status	Delivery	Size
1	Damaged	Standard	M
2	Lost	Express	L
⋮	⋮	⋮	⋮
75	Damaged	Same day	M

a)Transform the Delivery variable into dummy variables. Use the most frequent category as the reference category. How many dummy variables should be created? Which category of Delivery is the reference category?

Number of dummy variables: ????

Reference Category: Standard

Package	Status	Delivery	Size
1	Damaged	Standard	M
2	Lost	Express	L
3	Lost	Standard	S
4	Delivered	Standard	M
5	Lost	Standard	M
6	Lost	Same day	M
7	Lost	Standard	XL
8	Lost	Express	S
9	Lost	Express	L
10	Damaged	Standard	XL
11	Damaged	Standard	XL
12	Damaged	Express	XL
13	Damaged	Standard	S
14	Delivered	Express	M
15	Lost	Same day	M
16	Damaged	Express	M
17	Damaged	Standard	XL
18	Damaged	Standard	M
19	Damaged	Standard	L
20	Damaged	Standard	M
21	Lost	Standard	M
22	Lost	Express	M
23	Lost	Standard	L
24	Damaged	Same day	L
25	Delivered	Standard	L
26	Damaged	Standard	S
27	Damaged	Standard	M
28	Lost	Standard	L
29	Delivered	Same day	S
30	Lost	Same day	M
31	Delivered	Standard	M
32	Lost	Standard	M
33	Damaged	Standard	XL
34	Delivered	Express	S
35	Lost	Express	S
36	Damaged	Standard	L
37	Delivered	Standard	XL
38	Damaged	Same day	XL
39	Damaged	Express	L
40	Lost	Standard	S
41	Delivered	Standard	XL
42	Delivered	Express	S
43	Damaged	Same day	S
44	Lost	Standard	M
45	Delivered	Express	M
46	Delivered	Standard	L
47	Lost	Standard	S
48	Lost	Express	L
49	Damaged	Same day	L
50	Delivered	Standard	XL
51	Lost	Standard	L
52	Lost	Same day	XL
53	Damaged	Standard	XL
54	Lost	Express	L
55	Lost	Standard	L
56	Damaged	Express	S
57	Damaged	Standard	L
58	Lost	Standard	S
59	Lost	Standard	XL
60	Damaged	Express	S
61	Delivered	Standard	L
62	Delivered	Standard	XL
63	Lost	Standard	L
64	Damaged	Express	S
65	Delivered	Same day	L
66	Damaged	Standard	XL
67	Delivered	Express	XL
68	Delivered	Standard	M
69	Damaged	Standard	L
70	Damaged	Same day	L
71	Delivered	Express	M
72	Delivered	Express	XL
73	Damaged	Standard	M
74	Delivered	Express	S
75	Damaged	Same day	M

A manager of a local package delivery store believes that too many of the packages were damaged or lost. She
extracts a sample of 75 packages with the following variables: the package number (Package), the status of the
package (Status: Delivered, Damaged, or Lost), the delivery type (Delivery: Standard, Express, or Same day), and
the size of the package (Size: S, M, L, and XL). A portion of the data is shown in the accompanying table.
Package
Status
Delivery
Size
1
Damaged
Standard
M
2
Lost
Express
L
75
Damaged
Same day
M
picture Click here for the Excel Data File
a. Transform the Delivery variable into dummy variables. Use the most frequent category as the reference
category. How many dummy variables should be created? Which category of Delivery is the reference category?
Number of dummy variables created
Reference category
Standard

Expert Solution

Step 1 : Introduction

Dummy variables :

A dummy variable may be a variable with values of zero and one, with the values indicating the presence or absence of something (for example, a zero might represent a placebo and a one may indicate a medicine).
Indicator variables, style variables, contrasts, one-hot writing, and binary basis variables are all terms for dummy variables.

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here