The Dow Jones industrial average and the standard and pores 500 indexes are used as measures of overall movement in the stock market. The dJIA IS BASED ON THE PRICE MOVEMENTS OF 30 LARGE COMPANIES; THE S&P 500 IS AN INDEX COMPOSED OF 500 STOCKS. SOME SAY THE S&P 500 IS A BETTER MEASURE OF STOCK MARKET PERFORMANCE BECAUSE IT IS BROADER BASED THE CLOSING PRICE FOR THE DJ IA AND THE S&P 500 OR 144 DAYS IN 2022 ARE PROVIDED FOLLOW THE WALL STREET JOURNAL WEBSITE. What is the 95% confidence interval for the parameter b1
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To calculate the 95% confidence interval for the parameter \( b_1 \) (the slope of the regression line) in a linear regression analysis, we need to follow these steps: Show more…
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The Dow Jones Industrial Average (DJIA) and the Standard & Poor's 500 (S&P 500) indexes are used as measures of overall movement in the stock market. The DJIA is based on the price movements of 30 large companies; the S&P 500 is an index composed of 500 stocks. Some say the S&P 500 is a better measure of stock market performance because it is broader based. The closing price for the DJIA and the S&P 500 for 15 weeks, beginning with January 6, 2012, follow (Barron's website, April 17, 2012). Date DJIA S&P January 6 12,360 1,278 January 13 12,422 1,289 January 20 12,720 1,315 January 27 12,660 1,316 February 3 12,862 1,345 February 10 12,801 1,343 February 17 12,950 1,362 February 24 12,983 1,366 March 2 12,978 1,370 March 9 12,922 1,371 March 16 13,233 1,404 March 23 13,081 1,397 March 30 13,212 1,408 April 5 13,060 1,398 April 13 12,850 1,370 (f) Suppose that the closing price for the DJIA is 13,500. Estimate the closing price for the S&P 500. If required, round your answer to the nearest whole number. Do not round intermediate calculations.
Supreeta N.
The Dow Jones Industrial Average (DJIA) and the Standard \& Poor's 500 (S\&P) indexes are used as measures of overall movement in the stock market. The DJIA is based on the price movements of 30 large companies; the S\&P 500 is an index composed of 500 stocks. Some say the S\&P 500 is a better measure of stock market performance because it is broader based. The closing prices for the DJIA and the S\&P 500 for 20 weeks, beginning with September $9,2005,$ follow (Barron's, January 30,2006 ). a. Develop a scatter diagram for these data with DJIA as the independent variable. b. Develop the estimated regression equation. c. Test for a significant relationship. Use $\alpha=.05$ d. Did the estimated regression equation provide a good fit? Explain. e. Suppose that the closing price for the DJIA is 11,000 . Estimate the closing price for the $\mathrm{S} \& \mathrm{P} 500$ f. Should we be concerned that the DJIA value of 11,000 used to predict the $\operatorname{S\&P} 500$ in part (e) is beyond the range of the data used to develop the estimated regression equation?
The Dow Jones Industrial Average (DJIA) and the Standard & Poor’s 500 (S&P 500) indexes are used as measures of overall movement in the stock market. The DJIA is based on the price movements of 30 large companies; the S&P 500 is an index composed of 500 stocks. Some say the S&P 500 is a better measure of stock market performance because it is broader based. The closing price for the DJIA and the S&P 500 for 15 weeks, beginning with January 6, 2012, is stored in the data set DJIAS&P500 (Barron’s website, April 17, 2012). Develop a scatter diagram with DJIA as the independent variable. Develop the estimated regression equation. Test for a significant relationship. Use α=0.05. Did the estimated regression equation provide a good fit? Explain. Suppose that the closing price for DJIA is 13,500. Predict the closing price for the S&P 500 January 6 12360 1278 January 13 12422 1289 January 20 12720 1315 January 27 12660 1316 February 3 12862 1345 February 10 12801 1343 February 17 12950 1362 February 24 12983 1366 March 2 12978 1370 March 9 12922 1371 March 16 13233 1404 March 23 13081 1397 March 30 13212 1408 April 5 13060 1398 April 13 12850 1370
Lien L.
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