ng cengage.cem 0 MindTap Cengage Learning MINDTAP Suzanne Fendrick ? Chapter 11
ID: 3060560 • Letter: N
Question
ng cengage.cem 0 MindTap Cengage Learning MINDTAP Suzanne Fendrick ? Chapter 11 Assignment Due Today at 1 1 :59 PM CDT To analyze the risk, or volatility, associated with investing in General Electric common stock, a sample of the eight quarterly percent total returns was identified as shown below (Charles Schwab website, January 2012). The percent total return includes the stock price change plus the dividend payment for the quarter. Excel File: data11-07.xlsx 6 20.0-20.5 12.2 12.6 10.5-5.8-18.7 15.3 a. What is the value of the sample mean (to 1 decimal)? 8 3.2 What is its interpretation? 10. The input in the box below will not be graded, but may be reviewed and considered by your instructor. blank 12. 13. 14. b. Compute the sample variance and sample standard deviation as measures of volatility for the quarterly return for General Electric (to 2 decimals) Standard deviation: 221.70 Variance: 14.89 C. Construct a 95% confidence interval for the population variance (to 2 decimals). Use Table 11.1. 110.76 e 1049.4 d. Construct a 95% confidence interval for the population standard deviation (to 2 decimals). Use Table 11.1. 0.52 (---| 32.39 A- Hide Feedback Partially CorrectExplanation / Answer
The statistical software output for this problem is:
Summary statistics:
Hence,
Standard deviation = 15.92
Variance = 253.37
Column Variance Std. dev. Data 253.37143 15.917645Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.