You want to create a price-weighted index for semiconductor companies LRCX, MU, AMAT, and ORCL. Their respective price when you created the index is: $330, $35, $45 and $50. a. If you want the initial index to be 1,000, what must be the initial divisor? b. A year late, the price of the stocks were: $370, $55, $53 and $58. How much has the index change? c. Repeat step b, except LRCX has gone for a 10 for 1 split at the start. How much has the index change now