To analyze the risk, or volatility, associated with investing in General Electric common stock, consider a sample of the eight quarterly percent total returns. The percent total return includes the stock price change plus the dividendpayment for the quarter.Excel File: data11-06.xlsx20.0-20,512.212.610.5-5.8-18.715.3a. What is the value of the sample mean (to 1 decimal)?What is its interpretation?This is the estimate of theSelect your answerv mean percent total return per quarter for General Electric.b. Compute the sample variance and sample standard deviation as measures of volatility for the quarterly return for General Electric (to 2 decimals).Variance:Standard deviation:c. Construct a 95% confidence interval for the population variance (to 2 decimals). Use Table 11.1.d. Construct a 95% confidence interval for the population standard deviation (to 2 decimals). Use Table 11.1.

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Answered: To analyze the risk, or volatility,…

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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In June, an investor purchased 3000 shares of Oracle (an information technology company) stock at $53 per share. in august, she purchased an additional 400 shares at $42 per share. In November, she purchased an additional 400 shares at $45. What is the weighted mean price per share?
Using the following time series data of U.S. new car sales ($ millions), respond to the following items. (The data is sourced from https://www.census.gov/retail/index.html#mrts. Find “Monthly Retail Trade Report," then select "Time Series/Trend Charts" to find the data for U.S. new car sales.). $ Sales (Millions) $ 486,565 Year 2009 549,473 608,790 672,550 735,374 785,142 842,120 877,743 911,157 943,538 2010 2011 2012 2013 2014 2015 2016 2017 2018 E Click here for the Excel Data File b. Test for autocorrelation using the 0.05 significance level. (Negative amounts should be indicated by a minus sign. Round your answers to 2 decimal places.) Lagged Residuals Squared Difference Squared Residuals Year Sales Predicted Residuals 2009 $ 486,565 508,123.70 (21,558.70) 0.00 0.00 464,758,328.46 (10,455.50) (2,943.26) 2010 549,473 559,928.50 2011 608,790 611,733.30 2012 672,550 663,538.00 9,011.96 2013 735,374 715,342.80 20,031.19 2014 785.142 767,147.60 17,994.41 2015 842.120 818,952.40…
should have the right to marry. (The 2014 data were collected before the 2015 U.S. C2. GSS 2014 and GSS 2018 respondents were asked their opinion on whether homosexuals 30 measured on a 5-point scale from strongly agree (1) to strongly disagree (5). Supreme Court decision granting same-sex couples the right to marry. Responses wer measured on a 5-point scale from strongly agree (1) to strong!y aisagiee (2). Cumulative Percentage Homosexuals Should Have Right to Marry (2014) Percentage Frequency 32.5 32.5 Strongly agree 251 57.5 25.2 Agree 195 67.3 Neither agree nor disagree 9.6 74 79.2 Disagree 92 11.9 100.0 Strongly disagree 161 20.8 Total 773 100.0 Homosexuals Should Have Cumulative Right to Marry (2018) Frequency Percentage Percentage Strongly agree 293 39.5 39.5 Agree 200 27.0 66.5 Neither agree nor disagree 70 9.4 75.9 Disagree 67 9.0 84.9 Strongly disagree 111 15.0 99.9 Total 741 99.9 a. What is the level of measurement for this variable? b. What is the mode for 2014? For 2018?
A market researcher at a major clothing company that has traditionally relied on catalog mail-order sales decides to investigate whether the amount of online sales has changed. She compares the mean monthly online sales of the past several months with a historical figure for mean monthly sales for online purchases. She gets a P-value of 0.07. Explain in this context what the 7% represents.
2021 2020 2019 2018 2017 Sales $ 497,289 $ 327, 164 $ 267,073 $ 197, 102 $ 141,800 Cost of goods sold 251,145 165, 182 137, 037 99,651 70,900 Accounts receivable 23,969 19, 172 18,214 11,511 9,699 Compute trend percents for the above accounts, using 2017 as the base year.
Using the accompanying table, determine the most appropriate forecasting technique for the accompanying data about the Dow Jones Industrial Average yearly closing value and implement the model. Year Close 1983 1258.64 1984 1211.57 1985 1546.67 1986 1895.95 1987 1938.83 1988 2168.57 1989 2753.2 1990 2633.66 1991 3168.83 1992 3301.11 1993 3754.09 1994 3834.44 1995 5117.12 1996 6448.27 1997 7908.25 1998 9181.43 1999 11497.12 2000 10786.85 2001 10021.5 2002 8341.63 2003 10453.92 2004 10783.01 2005 10717.5 2006 12463.15 2007 13264.82 2008 8776.39 2009 10428.05 2010 11557.5 2011 12217.6 2012 13104.1 Use the model forecast the closing value for 2015.Use α=0.7,β=0.3,and γ=0.4,as needed. F2015?
The Consumer Price Index is reported monthly by the U.S. Bureau of Labor Statistics. It reports the charge in prices for a market basket of goods from one period to another. The index for 2010 was 213.967. BY 2017, it increased to 239.051 What was the geometric mean annual increase for the period? ( Round your answer to 1 decimal)
Over the past six years, a stock had annual returns of 14 percent, -3 percent, 8 percent, 21 percent, -16 percent, and 4 percent, respectively. What is the standard deviation of these returns? 11.27 percent 13.05 percent 13.59 percent 15.08 percent 14.40 percent
Q3. Consider the following data. Period Rate of Return (%) 1 -6.0 2 -8.0 3 -4.0 4 2.0 5 5.4 What is the mean growth rate over these five periods?
- The percent increase in enrollment at a junior college for the last 5 years were 9.8%, 14.8%, 12.7%, 10.9% and 18.7%. Determine the geometric mean percent increase over the last 5 years.
Using the same data and information. Please answer this: Should you be encouraging or discouraging credit card sales? In answering this question, consider the following: Is the proportion of credit and non-credit sales significantly different? (a=.05) Is the average sale amount for credit sales different than the average sales amount for non-credit sales? (a=.05)
The production of hybrid cars increased from $3.94 million in 2003 to $6.93 million in 2013. Calculate the average annual percent growth in the production of hybrid cars (use the geometric mean concept). Express your answer as a percentage rounded to two (2) decimal places.

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