Suppose that Ron recently opened a candy shop selling his newly crafted chocolate candy- Ronrons. Due to the surge in popularity of Ronrons, Ron hires several employees to take orders over the phone. Because of the large influx of calls from candy-craving customers, callers are often placed on hold for several minutes. After a few hours, customers begin to complain about the lack of hold music as an indication that they are still on the line with Ron's candy store. Ron wishes to determine if different genres of hold music entice customers to purchase differing amounts of Ronrons. Over the few days, Ron decides to randomly select 147 customers to be placed on hold immediately upon calling. He then randomly selects one of four genres of music- rock, country, classical, or rap-to be played to the customer. He then records the quantity of Ronrons purchased by that customer. The ANOVA table shows the results of Ron's study. The between group, within group, and total degrees of freedom-denoted df1,df2, and dftotal,, respectively-are all missing from the table. Assume all of the requirements are met for Ron's ANOVA test for the mean difference in quantity of Ronrons purchased. What are the degrees of freedom for the F statistic for Ron's ANOVA test?.