Ejercicios para la actividad 7. 1. Contrastar que, con el cambio de modelo de una máquina, el proceso se ha hecho más

variable. La varianza con el modelo anterior fue de 23.15. Se realizan 25 observaciones con el

nuevo modelo obteniéndose una varianza muestral

2. de 40.5. Utilice un 99% de confianza para realizar el contraste. (Contraste bilateral)

How has internet access changed and affected globalization from 2003 to 2013? a ten percent increase in internet access has had little effect on globalization. a twenty percent decrease in internet access has had little effect on globalization. a thirty percent increase in internet access has sped up globalization. a fifty percent decrease in internet access has slowed down globalization.

Laws corporation is considering the purchase of a machine costing $16,000. estimated cash savings from using the new machine are $4,120 per year. the machine will have no salvage value at the end of its useful life of six years and the required rate of return for laws corporation is 12%. the machine's internal rate of return is closest to (ignore income taxes) (a) 12% (b) 14% (c) 16% (d) 18%

1. what must one do to perform the essential managerial task of controlling in achieving organizational goals? a. motivate, coordinate, and energize individuals and groups to work together to achieve organizational goals b. choose appropriate organizational goals and courses of action to best achieve those goals c. establish task and authority relationships that allow people to work together to achieve organizational goals d. establish accurate measuring and monitoring systems to evaluate how well the organization has achieved its goals