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The following is the price (in dollars) of a stock checked by a trader several times on a particular day. 138 142 127 137 148 130 142 133 a) Compute the sample mean, standard deviation and median for the above data. b) Using the values obtained in (a), compute the coefficient which measures the skewness of the data. Interpret the result. c) Construct a 90 percent confidence interval for the mean price of stocks checked by the trader.

The following is the price (in dollars) of a stock checked by a trader several times on a particular day. 138 142 127 137 148 130 142 133 a) Compute the sample mean, standard deviation and median for the above data. b) Using the values obtained in (a), compute the coefficient which measures the skewness of the data. Interpret the result. c) Construct a 90 percent confidence interval for the mean price of stocks checked by the trader.

MATLAB: An Introduction with Applications
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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The following is the price (in dollars) of a stock checked by a trader several times on a particular day. 138 142 127 137 148 130 142 133 a) Compute the sample mean, standard deviation and median for the above data. b) Using the values obtained in (a), compute the coefficient which measures the skewness of the data. Interpret the result. c) Construct a 90 percent confidence interval for the mean price of stocks checked by the trader. d) At the 5% significant level, can we infer that the average price of stock is less than $140?
Transcribed Image Text:The following is the price (in dollars) of a stock checked by a trader several times on a particular day. 138 142 127 137 148 130 142 133 a) Compute the sample mean, standard deviation and median for the above data. b) Using the values obtained in (a), compute the coefficient which measures the skewness of the data. Interpret the result. c) Construct a 90 percent confidence interval for the mean price of stocks checked by the trader. d) At the 5% significant level, can we infer that the average price of stock is less than $140?
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