Statistics for Business and Economics (13th Edition)
13th Edition
ISBN: 9780134506593
Author: James T. McClave, P. George Benson, Terry Sincich
Publisher: PEARSON
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Textbook Question
Chapter 14.5, Problem 14.29ACI
S&P 500 Stock Index. Refer to the quarterly Standard & Poor’s 500 stock market index, Exercise 14.22 (p. 14-16).
a. Use exponential smoothing with w = .7 to smooth the series from 2008 through 2014. Then forecast the quarterly values in 2015 using only the information through the fourth quarter of 2014.
b. Repeat part a using w = .3. 1,869.8
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Chapter 14 Solutions
Statistics for Business and Economics (13th Edition)
Ch. 14.1 - Explain in words how to construct a simple index.Ch. 14.1 - Explain in words how to calculate the following...Ch. 14.1 - Explain in words the difference between Laspeyres...Ch. 14.1 - The table below gives the prices for three...Ch. 14.1 - Refer to Exercise 14.4. The next table gives the...Ch. 14.1 - Annual median family income. The table below lists...Ch. 14.1 - Annual U.S. craft beer production. While overall...Ch. 14.1 - Quarterly single-family housing starts. The...Ch. 14.1 - Spot price of natural gas. The table shown in the...Ch. 14.1 - Employment in farm and nonfarm categories....
Ch. 14.1 - GOP personal consumption expenditures. The gross...Ch. 14.1 - GDP personal consumption expenditures (contd)....Ch. 14.1 - Weekly earnings for workers. The table in the next...Ch. 14.1 - Production and price of metals. The level or price...Ch. 14.2 - Describe the effect of selecting an exponential...Ch. 14.2 - A monthly time series is shown in the table to the...Ch. 14.2 - Annual U.S. craft beer production. Refer to the...Ch. 14.2 - Foreign fish production. Overfishing and pollution...Ch. 14.2 - Yearly price of gold. The price of gold is used by...Ch. 14.2 - Personal consumption in transportation. There has...Ch. 14.2 - OPEC crude oil imports. The data in the table...Ch. 14.2 - SP 500 Stock Index. Standard Poors 500 Composite...Ch. 14.5 - How does the choice of the smoothing constant w...Ch. 14.5 - Refer to Exercise 14.4 (p. 14-9). The table with...Ch. 14.5 - Annual U.S. craft beer production. Refer to...Ch. 14.5 - Quarterly single-family housing starts. Refer to...Ch. 14.5 - Consumer Price Index. The CPI measures the...Ch. 14.5 - OPEC crude oil imports. Refer to the annual OPEC...Ch. 14.5 - SP 500 Stock Index. Refer to the quarterly...Ch. 14.5 - SP 500 Stock Index (contd). Refer to Exercise...Ch. 14.5 - Monthly gold prices. The fluctuation of gold...Ch. 14.6 - Annual U.S. craft beer production. Refer to the...Ch. 14.6 - Annual U.S. craft beer production (contd). Refer...Ch. 14.6 - SP 500 Stock Index. Refer to your exponential...Ch. 14.6 - SP 500 Stock Index (contd). Refer to your Holt...Ch. 14.6 - Monthly gold prices. Refer to the monthly gold...Ch. 14.6 - US school enrollments. The next table reports...Ch. 14.8 - The annual price of a finished product (in cents...Ch. 14.8 - Retail sales in Quarters 14 over a 10-year period...Ch. 14.8 - What advantage do regression forecasts have over...Ch. 14.8 - Mortgage interest rates. The level at which...Ch. 14.8 - Price of natural gas. Refer to Exercise 14.9 (p....Ch. 14.8 - A gasoline tax on carbon emissions. In an effort...Ch. 14.8 - Predicting presidential elections. Researchers at...Ch. 14.8 - Life insurance policies in force. The table below...Ch. 14.8 - Graphing calculator sales. The next table presents...Ch. 14.8 - Prob. 14.47ACICh. 14.9 - Define autocorrelation. Explain why it is...Ch. 14.9 - For each case, indicate the decision regarding the...Ch. 14.9 - What do the following Durbin-Watson statistics...Ch. 14.9 - Company donations to charity. Refer to the Journal...Ch. 14.9 - Forecasting monthly car and truck sales. Forecasts...Ch. 14.9 - Predicting presidential elections. Refer to the...Ch. 14.9 - Mortgage interest rates. Refer to the data on...Ch. 14.9 - Price of natural gas. Refer to the annual data on...Ch. 14.9 - Life insurance policies in force. Refer to the...Ch. 14.9 - Modeling the deposit share of a retail bank....Ch. 14 - Insured Social Security workers. Workers insured...Ch. 14 - Insured Social Security workers (contd). Refer to...Ch. 14 - Retail prices of food items. In 1990, the average...Ch. 14 - Demand for emergency room services. With the...Ch. 14 - Mortgage interest rates. Refer to the annual...Ch. 14 - Price of Abbott Labs stock. The yearly closing...Ch. 14 - Price o f Abbott Labs stock (contd). Refer to...Ch. 14 - Prob. 14.65ACICh. 14 - Prob. 14.66ACICh. 14 - Quarterly GOP values (contd). Refer to Exercise...Ch. 14 - Prob. 14.68ACICh. 14 - Prob. 14.69ACICh. 14 - Prob. 14.70ACICh. 14 - IBM stock prices. Refer to Example 14.1 (p. 14-5)...Ch. 14 - Prob. 14.72ACI
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- With what kind of exponential model would half-life be associated? What role does half-life play in these models?arrow_forwardSiena Ltd attempts to find the trend of its sales over the past five years. Siena is considering which model that best represent the trends of its sales. Following are the result of linear and exponential model trend analysis: a. Calculate the MSE and MAD for the linear trend model b. Calculate the MSE and MAD for the exponential trend model c. Which model that performs betterarrow_forwardActual demand for the past 16 periods is shown below. Prepare a trend adjusted exponential smoothing forecast using the following parameters: a = 4, B =.2, TAFS = 729.33, and T5 = 2.33. (Round all your answers to two decimal points.) %3D Period Actual TAF 1. 721 2. 724 3 725 4. 728 5. 732 6. 739 7. 738 8 745 751 10 756 11 754 12 760 13 762 14 765 15 765 16 767 17arrow_forward
- The table below reports the annual stock price in September for Apple from 2005 to 2014. Develop a simple index for the change in earning per share over the period. Use 2005 as the base period. percentages (e.g. 131.32 instead of 1.31)) (Indexes should be rounded to 2 decimal places and be in Year Earnings Per Share ($) Simple Index 2005 4.32 2006 4.14 2007 4.86 2008 5.94 2009 6.76 2010 10.08 2011 16.51 2012 23.65 2013 26.21 2014 29.86 Click here for the Excel Data File, Data file should open in a new browswer window. Select "File" then "Save As" to download the file to your computer and be able to use it in Excel. a. By what percent have stock prices changed from 2005 to 2009? b. By what percent have stock prices changed from 2005 to 2014? c. By what percent have stock prices changed from 2009 to 2014?arrow_forwardTough Face, a manufacturer of rock-climbing gear, has been enjoying steady growth of its very reliable and colorful carabiner products. Using the following sales history, calculate the trend-adjusted exponential smoothing forecast for the next three years. The growth trend appears to be 150 cases, alpha = 0.75, and beta = 0.85. Year 1 250 Year 2 369 Year 3 507 Year 4 658 Year 5 903arrow_forwardFind the MSE in part (b) please.arrow_forward
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