For the first six months of the year, an analyst records the monthly closing stock price (in $) for a firm as: 55, 58, 57, 50, 62, 59. (Youmay find it useful to reference the ttable.)?Click here for the Excel Data Filea. Calculate the sample mean and the sample standard deviation. (Round final answer to 2 decimal places.)Sample meanSample standard deviationb. Calculate the 99% confidence interval for the mean stock price of the firm assuming that the stock price is normally distributed.(Round final answer to 2 decimal places.)Confidence intervalto:. What happens to the margin of error if a higher confidence level is used for the interval estimate?The margin of error increases as the confidence level increases.The margin of error decreases as the confidence level increases.

1) Mean is given as, Mean=655+58+...+62=56.83 Std deviation is given as, s=n−1∑(Xi−Xˉ)2=4.07 2)…

Answered: For the first six months of the year,…

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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