2. Suggest two sources of systematic error and two sources of random error in measuring the width of a 3-m table with a 1-m metal rule.

A new car dealer calculates that the dealership must average more than 4.5% profit on sales of new cars. A random sample of 81 cars gives the following result.Sample Size = 81Sample Mean = 4.97% Sample Standard Deviation = 1.8%Does the sample data provide evidence to conclude that the dealership averages more than 4.5% profit on sales of new cars (usinga = .10)?

If power is set to .80, this implies:   a) that the Type I error is set to .20 b) that the Type II error is set to .20 c) that the alpha level is set to .08 d) that the beta is .80 as well

QUESTION 8 Find the uncertainty in a calculated electrical potential difference from the measurements of current and resistance. Electric potential difference depends on current and resistance according to this function V(I,R) = IR. Your measured current and resistance have the following values and uncertainties I = 2.4 Amps, 81 = 0.2 Amps and R = 29.5 Ohms and SR = 0.6 Ohms. What is the uncertainty in %3! %3D the , SV ? Units are not needed in your answer.