13.  The following calculator screen shots for the length of…

13.  The following calculator screen shots for the length of time (in minutes) until the next eruption of Old Faithful at Yellowstone National Park.      a)        Find the interquartile range, IQR.  Show your work. {2 pts.}       b)        Find the low fence and the high fence.   Show your work.  {2 pts.}       c)         You have enough information to determine whether or not this set has any outliers.  Does this data set have any outliers?  Explain your reasoning.  {2 pts.}       

12.  Find the variance and standard deviation for the given…

12.  Find the variance and standard deviation for the given data by hand.  {8 pts.} (Show all steps!  Answers alone receive no credit!)   To get the best deal on a recliner, Jason called six furniture stores and asked the cost of a recliner. The prices he was quoted are listed below:   $589             $275             $865             $496             $638             $410   Use the formulas s2=Σ(x-x¯)2n-1{“version”:”1.1″,”math”:”s2=Σ(x-x¯)2n-1″} and s=s2{“version”:”1.1″,”math”:”s=s2″}   x x-x¯{“version”:”1.1″,”math”:”x-x¯”} (x-x¯)2{“version”:”1.1″,”math”:”(x-x¯)2″}                                                                                                          

15.  A data set has a mean of 9, a median of 13, and a stand…

15.  A data set has a mean of 9, a median of 13, and a standard deviation of 2.8.  Each data point in the set is tripled.  What is the new mean and median? {4 pts.}   Mean:  ___________                   Median:  _________