In statistical process control (spc), if a sample of items is taken and the mean of the sample is outside the control limits, the process is:
a. out of control and the cause should be established
b. producing high quality products
c. in control and capable of producing within the established control limits
d. in control, there is no need for concern within the established control limits with only natural causes of variation

Oceanside marine company manufactures special metallic materials and decorative fittings for luxury yachts that require highly skilled labor. oceanside uses standard costs to prepare its flexible budget. for the first quarter of the year, direct materials and direct labor standards for one of their popular products were as follows: direct materials: 2 pound per unit; $ 11 per pound direct labor: 2 hours per unit; $ 19 per hour oceanside produced 2 comma 000 units during the quarter. at the end of the quarter, an examination of the direct materials records showed that the company used 7 comma 500 pounds of direct materials and actual total materials costs were $ 98 comma 100. what is the direct materials cost variance? (round any intermediate calculations to the nearest cent, and your final answer to the nearest dollar.)

By which distribution system is more than 90 percent of u.s. coal shipped? a. pipelinesb. trucksc. waterwaysd. railroadse. none of the above

John has been working as a tutor for $300 a semester. when the university raises the price it pays tutors to $400, jasmine enters the market and begins tutoring as well. how much does producer surplus rise as a result of this price increase?