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 BisonYak-et-ty-YaksBuffalo Yarns 799776799 784640931 873822794 702812920 795673731 875893837 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:

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Answered: Saeko owns a yarn shop and want to…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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An automotive service center would like feedback on its customer service. Each customer receives a printed card after they pay for services with a short survey on which customer service is ranked on a scale from 1 (least satisfied) to 5 (most satisfied). Customers can then choose to submit the card in a box on their way out of the store. The store manager finds that 140 cards were filled out in the past week, with an average customer satisfaction score of 2.47. Which type of bias is most likely to be present in the survey results? O This is undercoverage bias because some types of customers may not have received cards. O This is nonresponse bias because many customers may choose to not fill out the cards. O This is question wording bias because the customer service score levels may not be clear to customers. O This is response bias because customers may not be truthful about their experience with customer service. Mark this and return Save and Exit Next Submit 近

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A ski company in Vail owns two ski shops, one on the west side and one on the east side of Vail. Ski hat sales data (in dollars) for a random sample of 5 Saturdays during the ski season showed the following results. Is there a significant difference in sales dollars of hats between the west side and east side stores at the 10 percent level of significance? Saturday Sales Data ($) for Ski Hats Saturday East Side Shop West Side Shop 1 548 523 2 493 721 3 609 695 4 567 510 5 432 532 Click here for the Excel Data File (b) State the decision rule for 10 percent level of significance. (Round your answers to 3 decimal places.) (c-1) Find the test statistic tcalc. (Round your answer to 2 decimal places. A negative value should be indicated by a minus sign.) (c-2) What is your conclusion? Ski Hat Sales on Five Consecutive Saturdays (n = 5) Saturday East Side West Side 1 548 523 2 493 721 3 609 695…

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	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: