Question: The table below shows the year open and year closing price of the Nasdaq Stock Index from 2009 to 2019: Year Year Open Year Close
The table below shows the year open and year closing price of the Nasdaq Stock Index from 2009 to 2019:
| Year | Year Open | Year Close | Annual Percent Change |
| 2009 | $1,632.21 | $2,269.15 | 39.0% |
| 2010 | $2,308.42 | $2,652.87 | 14.9% |
| 2011 | $2,691.21 | $2,605.15 | -3.2% |
| 2012 | $2,648.72 | $3,019.51 | 14.0% |
| 2013 | $3,112.26 | $4,176.59 | 34.2% |
| 2014 | $4,143.07 | $4,736.05 | 14.3% |
| 2015 | $4,726.81 | $5,007.41 | 5.9% |
| 2016 | $4,903.09 | $5,383.12 | 9.8% |
| 2017 | $5,429.08 | $6,903.39 | 27.2% |
| 2018 | $7,006.90 | $6,635.28 | -5.3% |
| 2019 | $6,665.94 | $8,972.61 | 34.6% |
For this assignment you need you need to do the following:
- Compute the mean, median, range, and standard deviation for Annual Percent Change;
(Looking at these values, over the long run, is investing in theNasdaq Stock Index a profitable investment? Why or why not? Also, the standard deviation is a measure for risk of this investment. Does investing in the Nasdaq have some risk? Why or why not?)
- Using MS Excel or the website here (http://www.alcula.com/calculators/statistics/) to construct a boxplot for the Annual Percent Change;
- Using MS Excel or the website here (http://www.alcula.com/calculators/statistics/) to construct a scatter plot of Year Close & Year;
(Paste your scatter plot below. Comment on the general trend you're observing in the scatter plot. Answer: over time does it seem like theNasdaq Stock Index has a positive or negative trend?)
- Find a regression equation for Year Close Price, y, at x years since 2009;
- Calculate the value of the Correlation Coefficient for Year Close Price, y, at x years since 2009 and comment on it's value; and
- Use your regression equation to predict the Year Close Price of the Nasdaq in 2020.
- The actual close price for 2020 was $12,888.28. Calculate the error (residual) your regression equation made. Why do you think the model made such a large error? There are lots of reasons for this large error and I am interested on why you think this might be. Consider doing some research as to why the stock market, specifically the Nasdaq, was up so much in 2020.
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