# Question

(a) Plot both men's and women's winning times on the same graph.

(b) Fit a linear trend model to each series (men, women).

(c) Use Excel's option to forecast each trend graphically to 2040 (i.e., to period t = 27 periods because observations are in 4-year increments). From these projections, does it appear that the times will eventually converge? *

(d) Set the fitted trends equal, solve for x (the time period when the trends will cross), and convert x to a year. Is the result plausible? Explain.

(e) If possible, use the web to check your 2012 forecast.

(b) Fit a linear trend model to each series (men, women).

(c) Use Excel's option to forecast each trend graphically to 2040 (i.e., to period t = 27 periods because observations are in 4-year increments). From these projections, does it appear that the times will eventually converge? *

(d) Set the fitted trends equal, solve for x (the time period when the trends will cross), and convert x to a year. Is the result plausible? Explain.

(e) If possible, use the web to check your 2012 forecast.

## Answer to relevant Questions

(a) Plot U.S. petroleum imports on a graph. (b) Describe the trend (if any) and discuss possible causes. (c) Fit both a linear and an exponential trend. (c) Interpret each fitted trend equation, explaining the ...(a) Make an Excel line graph of the data on employee work stoppages. (b) Discuss the under- lying causes that might explain the trend or pattern. (c) Fit three trends (linear, exponential, quadratic). (d) Which trend ...(a) Make an Excel line graph of the exchange rate data. Describe the pattern. (b) Click on the data and choose Add Trendline > Moving Average. Describe the effect of increasing m (e.g., m = 2, 4, 6, etc.). Include a copy of ...During the 197374 hockey season, the Boston Bruins played 39 home games and scored 193 points, as shown below. (a) Estimate the mean from the sample. (b) Calculate the expected frequencies assuming a Poisson ...To see whether students who nish an exam rst get the same grades as those who nish later, a professor kept track of the order in which papers were handed in. Of the rst 25 papers, 10 received a "B" or better, compared with 8 ...Post your question

0