Afirm is trying to decide which of two devices to install to reduce costs in a particular situation devices a costs $1000, device b costs $1350 and both have useful lives of 5 years and no salvage value device a can be expected to result in $300 savings annually device b will provide cost savings of $300 the first year, but savings will increase by $50 annually, making the second-year savings $350, the third-year savings $400, and so forth with interest rate at 7%, which device should the firm purchase? use cost benefit ratio to solve this question. show all your steps, build models, provide them with number, come up with results and show their units, then, draw conclusions.

Reliability and validity reliability and validity are two important considerations that must be made with any type of data collection. reliability refers to the ability to consistently produce a given result. in the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways. unfortunately, being consistent in measurement does not necessarily mean that you have measured something correctly. to illustrate this concept, consider a kitchen scale that would be used to measure the weight of cereal that you eat in the morning. if the scale is not properly calibrated, it may consistently under- or overestimate the amount of cereal that’s being measured. while the scale is highly reliable in producing consistent results (e.g., the same amount of cereal poured onto the scale produces the same reading each time), those results are incorrect. this is where validity comes into play. validity refers to the extent to which a given instrument or tool accurately measures what it’s supposed to measure. while any valid measure is by necessity reliable, the reverse is not necessarily true. researchers strive to use instruments that are both highly reliable and valid.

Which represents the solution set of 5(x+5) < 857o x< 12o x> 12x< 16x> 16

Why is it that reducing the number of moves, delays, and storages in a manufacturing process is a good thing? can they be completely eliminated?