QUESTION 1 A machine cuts rods of various length. The manufacturer suspects the machine may be cutting the 100 mm rod too long, so a quality assurance specialist measures the length of 50 rods. The mean length is found to be 100.15 mm with a standard devlation of 0.2 mm. Which MATLAB command calculates the test statistic Zstat? C rstat (100.15-100)/(02/ s0) Ozstat (100.15-100)/(02/sqs) C rstat (100.15-100)/(1.96/sqri5)) zstat (100-100.15)/(02/ sqt5)) QUESTION 2 A signal was sampled at 0.02 second increments for 10 seconds. What frequency range can be detected with this sample rate? CBetween 0.1 Hz and 25Hz C Between 1 HMz and 25 Hz C Between 1 Hz and S Haz Between 1 Hz and 50 Hz QUESTION 3 The integral of nonlinear function f approximation be improved? is approximated from x-0 to xx5 using a composite Trapezoid rule with n=5 segments. How could the accuracy of the Use the Trapezoid Rule with ne1 segment ntegrate over the interval x 0 to x-6 Cuse the Trapezoid with n-4 segments C Use the Trapezold Rule with 6 segments