Saeko owns a yarn shop and want to expands her color selection. Before she expands her colors,
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Question:
Saeko owns a yarn shop and want to expands her color selection. | |||||||||
Before she expands her colors, she wants to find out if her customers prefer one brand | |||||||||
over another brand. Specifically, she is interested in three different types of bison yarn. | |||||||||
As an experiment, she randomly selected 21 different days and recorded the sales of each brand. | |||||||||
At the .10 significance level, can she conclude that there is a difference in preference between the brands? | |||||||||
Misa's Bison | Yak-et-ty-Yaks | Buffalo Yarns | |||||||
799 | 776 | 799 | |||||||
784 | 640 | 931 | |||||||
873 | 822 | 794 | |||||||
702 | 812 | 920 | |||||||
795 | 673 | 731 | |||||||
875 | 893 | 837 | |||||||
Total | 4,828.00 | 4,616.00 | 5,012.00 | ||||||
6) | What is the null hypothesis? | ||||||||
What is the alternative hypothesis? | |||||||||
What is the level of significance? | |||||||||
7) | Use Tools - Data Analysis - ANOVA:Single Factor | ||||||||
to find the F statistic: | |||||||||
8) | From the ANOVA output: What is the F value? | ||||||||
What is the F critical value? | |||||||||
9) | What is your decision? | ||||||||
Explain in statistical terms |
Related Book For
Excellence in Business Communication
ISBN: 978-0136103769
9th edition
Authors: John V. Thill, Courtland L. Bovee
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