The following table presents the retail sales (in millions of $) for the top 10 electronics categories in the fourth quarter of 2015 and first quarter of 2016 a Find the sample standard deviation of the online purchases for 2015 b Find the sample standard deviation of the online purchases for 2016 ...

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The following table presents the retail sales (in millions of $) for the top 10 electronics categories

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The following table presents the retail sales (in millions of $) for the top 10 electronics categories in the fourth quarter of 2015 and first quarter of 2016. image text in transcribed

a. Find the sample standard deviation of the online purchases for 2015.

b. Find the sample standard deviation of the online purchases for 2016.

c. The amount of online purchases was larger in every category in 2015 than in 2016. Was the spread in online purchases larger as well?

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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Question Posted: May 03, 2024 04:02 AM

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The following table presents the retail sales (in millions of $) for the top 10 electronics categories

Question:

Category Laptops Fourth Quarter 2015 First Quarter 2016 393 301 Tablets 425 223 Wearable Technology 315 222 Computer Data Storage 271 216 Headphones 334 194 Home Audio 314 178 Printers and Scanners 184 171 Routers and Networking 183 169 Televisions 356 158 Cases and Screen Protectors 248 150

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Elementary Statistics

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