The data in Table 2 represent the rates of return of the Standard and Poor's Index of 500 Stocks from January 2002 through June 2005. Is there sufficient evidence to support the claim that positive monthly rates of return are random at the a = 0.05 level of significance? Table 2 Date Return (%) Date Return (%) Date Return (%) Date Return (%) 1/2002 -2.12 1/2003 -2.74 1/2004 1.73 1/2005 -2.53 2/2002 -2.08 2/2003 -1.70 2/2004 1.22 2/2005 1.89 3/2002 3.67 3/2003 0.84 3/2004 -1.64 3/2005 -1.91 4/2002 -6.14 4/2003 8.10 4/2004 -1.68 4/2005 -2.01 5/2002 -0.91 5/2003 5.09 5/2004 1.21 5/2005 3.00 6/2002 -7.25 6/2003 1.13 6/2004 1.80 6/2005 0.90 7/2002 -7.90 7/2003 1.62 7/2004 -3.43 8/2002 0.49 8/2003 1.79 8/2004 0.23 9/2002 -11.00 9/2003 -1.19 9/2004 0.94 10/2002 8.64 10/2003 5.50 10/2004 1.40 11/2002 5.71 11/2003 0.71 11/2004 3.86 12/2002 -6.03 12/2003 5.08 12/2004 3.25 Source:Yahoo! Finance

The data in Table 2 represent the rates of return of the Standard and Poor's Index of 500 Stocks from January 2002 through June 2005. Is there sufficient evidence to support the claim that positive monthly rates of return are random at the a = 0.05 level of significance? Table 2 Date Return (%) Date Return (%) Date Return (%) Date Return (%) 1/2002 -2.12 1/2003 -2.74 1/2004 1.73 1/2005 -2.53 2/2002 -2.08 2/2003 -1.70 2/2004 1.22 2/2005 1.89 3/2002 3.67 3/2003 0.84 3/2004 -1.64 3/2005 -1.91 4/2002 -6.14 4/2003 8.10 4/2004 -1.68 4/2005 -2.01 5/2002 -0.91 5/2003 5.09 5/2004 1.21 5/2005 3.00 6/2002 -7.25 6/2003 1.13 6/2004 1.80 6/2005 0.90 7/2002 -7.90 7/2003 1.62 7/2004 -3.43 8/2002 0.49 8/2003 1.79 8/2004 0.23 9/2002 -11.00 9/2003 -1.19 9/2004 0.94 10/2002 8.64 10/2003 5.50 10/2004 1.40 11/2002 5.71 11/2003 0.71 11/2004 3.86 12/2002 -6.03 12/2003 5.08 12/2004 3.25 Source:Yahoo! Finance

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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a. Develop a hypothesis test that can be used to determine whether the mean annual consumption in Webster City is higher than the national mean. Ho: $21.5 Ha: >21.5 b. What is a point estimate of the difference between mean annual consumption in Webster City and the national mean? (2 decimals) c. At a = 0.01, test for a significant difference by completing the following. Calculate the value of the test statistic (2 decimals). The p-value is Reject the null hypothesis? (4 decimals) Yes v What is your conclusion? Conclude the population mean consumption of milk in Webster City is greater tha
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