15. (12 points) Problem 2.47) Consider an IEEE-based floating-point format below with one sign bit, four exponent bits, and four fraction bits. The exponent has a Bias of 7. I sle3 e2 el eo | f3 f2 f1 fo 1. Give the bit-representation of the smallest, non-zero, positive number in this format. 2. What is the value of this number given as a fraction? 3. Give the bit-representation of the largest, non-infinite, positive number in this format. 4. What is the decimal value of the number from part (c)? 5. In this format, calculate the value of the following bit representation: 0 0000 1101 6. In this format, calculate the value of the following bit representation: 0 1010 1110