Excel template - SavedE2123456789FileAHomeCompanyAflacBank of Am.CablevisionDiageoFluor CpGoodrichJohn.&John.Loews CpNokia1011 SmpraEngy12 Sunoco13 Tyson Food141516171819202122232425262728293031323324InsertDataArial✓ fxBPriceChange ($)0.801.47-0.050.910.410.221.330.982.350.530.280.10+DrawсPage Layout✓ 10BFormulasPart aVariance (to 4 decimals)Part cDegrees of FreedomDM.Part bStandard Deviation (to 4 decimals)Search (Option + Q)DataLeft-Tailed Probability (to 4 decimals)Right-Tailed Probability (to 4 decimals)ReviewThe 95% Confidence Interval of the Population VarianceC.I.Lower Limit (to 4 decimals)C.I.Upper Limit (to 4 decimals)The 95% Confidence Interval of the Standard DeviationC.I.Lower Limit (to 4 decimals)C.I.Upper Limit (to 4 decimals)ViewEvEabHelpFNumberFormula#N/A#N/A#N/A#N/A#N/A#N/A#N/A#N/A#N/A←0.00.00→.0HIJEditing ✓Σ ✓ ✓KLCommentsM The table showing the stock price changes for a sample of 12 companies on a day is contained in the Excel Online file below. Construct a spreadsheet to answer the followingquestions.XOpen spreadsheeta. Compute the sample variance for the daily price change (to 4 decimals).b. Compute the sample standard deviation for the price change (to 4 decimals).c. Provide 95% confidence interval estimates of the population variance (to 4 decimals).so²sd. Provide 95% confidence interval estimates of the population standard deviation (to 4 decimals).sosCheck My WorkReset Problem

The data for the price change for 12 companies are given.

Answered: The table showing the stock price…

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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Varatta Enterprises sells industrial plumbing valves. The following table lists the annual sales amounts for a portion of the salespeople in the organization for the most recent fiscal year. a. Compute the mean (in $1000), variance (in $10002), and standard deviation (in $1000) for these annual sales values. Round your answers to the nearest whole number. b. In the previous fiscal year, the average annual sales amount was 290 thousand with a standard deviation of 95 thousand. Discuss any differences you observe between the annual sales amount in the most recent and previous fiscal years. Which of the following is correct? (i) The difference in the mean annual sales amount is very small and is most likely due to random change in demand for these products. (ii) The sample mean annual sales amount and standard deviation for the previous fiscal year were significantly higher. (iii) The sample mean annual sales amount and standard deviation for the previous fiscal year were significantly…
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