The following data show the number of rental cars in service for three rental car corporations: Henz, Avis and Dollar. The data are  for the years 2007-2010 and are in thousands of vehicles (auto Rental News website, May 15, 2011)           Company 2007 2008 2009 2010 Hentz 327 311 286 290 Dollar 167 140 106 108 Avis 204 220 300 270   Construct a time series graph for years 2007 and 2010 showing the number of rental cars service for each company. Show the time series for all three companies on the same graph Comment on who appears to be the market share leaders and how market shares are changing over time. Construct a bar chart showing rental cars in service for 2010. Is this chart based on cross sectional or time series data?

The following data report total, monthly U.S. book-store sales in millions of dollars from January 2016 to March 2019. (Go to https://www.census.gov/retail/index.html#mrts, find “Monthly Retail Trade Report,” then select “Time Series/Trend Charts” to find the data for the total U.S. bookstore sales.)YearMonth          2016     2017      2018     2019January       $1,468  $1,386  $1,271   $1,144February      727       691       709        666March          719       707       734        685April             709       729       710May             778       781       787June            713       704       727July             687       669       701August        1,524    1,374    1,364September  1,064    997       986October       715       689       741November   742       703       768December    1,256   1,157    1,259 c. Which forecasting model is appropriate based on the data for the total U.S. bookstore sales?Appropriate model____________d. Evaluate a seasonally adjusted trend…

Hmm.115.

The following data report total, monthly U.S. book-store sales in millions of dollars from January 2016 to March 2019. (Go to https://www.census.gov/retail/index.html#mrts, find “Monthly Retail Trade Report,” then select “Time Series/Trend Charts” to find the data for the total U.S. bookstore sales.)YearMonth         2016      2017       2018         2019January     $1,468    $1,386    $1,271      $1,144February     727       691          709           666March         719       707          734           685April            709       729          710May            778       781          787June           713       704          727July            687       669          701August       1,524    1,374       1,364September 1,064    997          986October      715       689          741November  742       703          768December  1,256    1,157       1,259         g. Predict book sales for the next 9 months. (Round your answers to 4 decimal places.)Year    Month                Forecast…