The monthly closing stock prices (rounded to the nearest dollar) for Starbucks Corp and Panera Bread Co for the first six months of 2016 are reported in the following table a Calculate the sample variance and the sample standard deviation for each firms stock price b Which firms stock price had gre...

a b Relative to Starbucks Panera Breads stock price has greater variability as indicat ...

The monthly closing stock prices (rounded to the nearest dollar) for Starbucks Corp. and Panera Bread Co.

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The monthly closing stock prices (rounded to the nearest dollar) for Starbucks Corp. and Panera Bread Co. for the first six months of 2016 are reported in the following table.

Starbucks Corp. Panera Bread Co. Month January 2016 61 194 February 2016 58 207 205 March 2016 60 April 2016 55 215 May

a. Calculate the sample variance and the sample standard deviation for each firm’s stock price.

b. Which firm’s stock price had greater variability as measured by the standard deviation?

c. Which firm’s stock price had the greater relative dispersion?

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Business Statistics Communicating With Numbers

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Authors: Sanjiv Jaggia

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The monthly closing stock prices (rounded to the nearest dollar) for Starbucks Corp. and Panera Bread Co.

Question:

Starbucks Corp. Panera Bread Co. Month January 2016 61 194 February 2016 58 207 205 March 2016 60 April 2016 55 215 May 2016 57 219 June 2016 58 212

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Business Statistics Communicating With Numbers

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