Problem 1: Who's to blame? (10 points) In manufacturing its iPhone, Apple buys a particular kind of microchip from 3 suppliers: 30% from Freescale, 20% from Texas Instruments and 50% from Samsung. Apple has extensive histories on the reliability of the chips and knows that 3% of the chips from Freescale are defective; 5% from Texas Instruments are defective and 4% from Samsung are defective. In testing a newly assembled iPhone, Apple found the microchip to be defective. What provider is the likely culprit?