The peaks in the magnitude spectrum give the precise locations of the frequency shifts. identify the location of the peaks in the positive frequencies (you may use an inbuilt matlab function) and store them inside a row vector called fshift in ascending order. fshift values should be whole numbers, round to the nearest integer if necessary.

The “rule of 72” is used to approximate the time required for prices to double due to inflation. if the inflation rate is r%, then the rule of 72 estimates that prices will double in 72/r years. for instance, at an inflation rate of 6%, prices double in about 72/6 or 12 years. write a program to test the accuracy of this rule. for each interest rate from 1% to 20%, the program should display the rounded value of 72/r and the actual number of years required for prices to double at an r% inflation rate. (assume prices increase at the end of each year.)