The monthly closing stock prices (rounded to the nearest dollar) for Panera Bread Co. for the first six months of 2010 are reported inthe following table. [You may find it useful to reference the t table.]MonthsClosing Stock PriceJanuaryFebruary6March9AprilMay810June4Source: http://finance.yahoo.com.a. Calculate the sample mean and the sample standard deviation. (Round intermediate calculations to at least 4 decimal places and"Sample mean" and "Sample standard deviation" to 2 decimal places.)Sample meSample standard deviationb. Calculate the 90% confidence interval for the mean stock price of Panera Bread Co., assuming that the stock price is normallydistributed. (Round "t" value to 3 decimal places and final answers to 2 decimal places.)Confidence intervalto

a) Sample mean:x¯=5+6+9+8+10+46=426=7 Sample standard deviation:…

The monthly closing stock prices (rounded to the nearest dollar) for Panera Bread Co. for the first six months of 2010 are reported in the following table. [You may find it useful to reference the t table.) Months Closing Stock Price January February March 6 9. April May June 8 10 4.

The monthly closing stock prices (rounded to the nearest dollar) for Panera Bread Co. for the first six months of 2010 are reported in the following table. [You may find it useful to reference the t table.) Months Closing Stock Price January February March 6 9. April May June 8 10 4.

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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Question

The monthly closing stock prices (rounded to the nearest dollar) for Panera Bread Co. for the first six months of 2010 are reported in
the following table. [You may find it useful to reference the t table.]
Months
Closing Stock Price
January
February
6
March
9
April
May
8
10
June
4
Source: http://finance.yahoo.com.
a. Calculate the sample mean and the sample standard deviation. (Round intermediate calculations to at least 4 decimal places and
"Sample mean" and "Sample standard deviation" to 2 decimal places.)
Sample me
Sample standard deviation
b. Calculate the 90% confidence interval for the mean stock price of Panera Bread Co., assuming that the stock price is normally
distributed. (Round "t" value to 3 decimal places and final answers to 2 decimal places.)
Confidence interval
to

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