Assume selected financial data for Sun Health Group and Select Medical Corporation, two companies in the health-care industry, are as follows: ($ in millions) Net Sales Beginning Accounts Receivable Ending Accounts Receivable Sun Health $3,930 $315 $302 Select Medical 4,240 514 453 Required: 1-a. Calculate the receivables turnover ratio and average collection period for Sun Health and Select Medical. 1-b. Which company maintains a higher receivables turnover