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COMP 3-B ANOVA (Midterm Exam)

This document shows US retail e-commerce sales data from 2012 to 2016, broken down by product category. Total e-commerce sales grew each year over the period, reaching $361.8 billion in 2016. Computer/electronics and apparel/accessories were the two largest categories each year. An ANOVA test found no statistically significant difference in sales amounts between years.

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Coke Aidenry Saludo
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77 views3 pages

COMP 3-B ANOVA (Midterm Exam)

This document shows US retail e-commerce sales data from 2012 to 2016, broken down by product category. Total e-commerce sales grew each year over the period, reaching $361.8 billion in 2016. Computer/electronics and apparel/accessories were the two largest categories each year. An ANOVA test found no statistically significant difference in sales amounts between years.

Uploaded by

Coke Aidenry Saludo
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLSX, PDF, TXT or read online on Scribd
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Table 1.

US Retail E-Commerce Sales, By Product Category, 2012-2016


(in billions)

2012 2013
Computer & consumer electronics 48.6 55.9
Apparel & accessories 41.0 48.6
Books/music/video 20.4 23.8
Auto & parts 18.3 19.7
Furniture & home furnishings 16.5 18.8
Health & personal care 10.1 11.5
Office equipment & supplies 7.9 8.6
Toys & hobby 7.8 9.1
Food & beverage 5.1 5.9
Other 48.5 54.2
TOTAL 224.2 256.1

Source: eMarketer, March 2012; confirmed and republished, Sep 2012


Retrieved from: https://www.google.com/amp/s/consumeo.wordpress.com/2012/04/24/apparel-drives-u

Submitted by:
Saludo, Coke Aidenry E.
Obinguar, Ma. Angelica U.
Comp 3-B
y, 2012-2016

2014 2015 2016


63.8 71.9 80.2
56.6 64.8 73.0
27.3 30.9 34.7
21.1 22.5 24.0
21.3 23.9 26.6
13.0 14.5 16.0
9.3 9.9 10.5
10.4 11.8 13.3
6.8 7.7 8.8
60.4 67.1 74.7
290.0 325.0 361.8 1457.1

com/2012/04/24/apparel-drives-us-retail-ecommerce-sales-growth/amp/
Anova: Single Factor

SUMMARY
Groups Count Sum Average Variance
2012 10 224.2 22.42 293.6907
2013 10 256.1 25.61 388.6099
2014 10 290 29 507.36
2015 10 325 32.5 649.7356
2016 10 361.8 36.18 817.7151

ANOVA
Source of Variation SS df MS F P-value F crit
Between Groups 1184.901 4 296.2252 0.55742 0.694667 2.578739
Within Groups 23914 45 531.4222

Total 25098.9 49

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