"Black Friday," which occurs annually the day after Thanksgiving, is one of the biggest shopping days of the year. During the 2012 holiday season, many stores created controversy by starting their mega-sales on Thanksgiving itself. In a random sample of 25 individuals who shopped during the Black Friday four-day weekend (Thursday - Sunday), the average amount spent was $399.40 with standarddeviation $171.10. The data are displayed in the provided dotplot.90….Reference: 6-36·180 270360 450 540Amount Spent630720A natural question would be if more money was spent over the 2012 Black Friday weekend than over the 2011 Black Friday weekend (which did not start on Thursday). What information would benecessary to address this question using the paired data difference in means method? How could the data be collected so that the difference in means for two separate groups method would be mostappropriate?

Given "Black Friday" occurs annually the day after Thanks giving.

"Black Friday," which occurs annually the day after Thanksgiving, is one of the biggest shopping days of the year. During the 2012 holiday season, many stores created controversy by starting their mega- sales on Thanksgiving itself. In a random sample of 25 individuals who shopped during the Black Friday four-day weekend (Thursday-Sunday), the average amount spent was $399.40 with standard deviation $171.10. The data are displayed in the provided dotplot. 90 180 270 Reference: 6-36 ********** 540 360 450 Amount Spent 630 720 A natural question would be if more money was spent over the 2012 Black Friday weekend than over the 2011 Black Friday weekend (which did not start on Thursday). What information would be necessary to address this question using the paired data difference in means method? How could the data be collected so that the difference in means for two separate groups method would be most appropriate?

"Black Friday," which occurs annually the day after Thanksgiving, is one of the biggest shopping days of the year. During the 2012 holiday season, many stores created controversy by starting their mega- sales on Thanksgiving itself. In a random sample of 25 individuals who shopped during the Black Friday four-day weekend (Thursday-Sunday), the average amount spent was $399.40 with standard deviation $171.10. The data are displayed in the provided dotplot. 90 180 270 Reference: 6-36 ********** 540 360 450 Amount Spent 630 720 A natural question would be if more money was spent over the 2012 Black Friday weekend than over the 2011 Black Friday weekend (which did not start on Thursday). What information would be necessary to address this question using the paired data difference in means method? How could the data be collected so that the difference in means for two separate groups method would be most appropriate?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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