Clark heter is an industrial engineer at lyons products. he would like to determine whether there are more units produced on the night shift than on the day shift. a sample of 56 day-shift workers showed that the mean number of units produced was 336, with a population standard deviation of 19. a sample of 61 night-shift workers showed that the mean number of units produced was 341, with a population standard deviation of 25 units.

a) the decision rule is to reject h0: μd ≥ μn if z < (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.)

b)

the test statistic is z = . (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.)

Will give brainliest and 100 to best and correct project: benefit analysis study: small business expansion you are the owner of a small business that offers advertising services for your local homebuilding professionals. originally you were the only employee, working at your desktop at home. now your business is growing and you need to add more workers. the first assessment of your current situation: one worker, one desktop computer, one modem, one printer/scanner, one phone line (dsl). you also created a draft situation of what technology you will need if you add two more workers (three workers including yourself): three computers, one router, one printer/scanner, one phone line (wireless). do a one-page benefit analysis study that: compares the cost of adding two desktops vs. one or two laptops compares the cost of replacing the modem with a router/modem. compares the cost of building a wan vs. a lan or a vpn summarizes the total cost of maintaining your home office as the only computing space for your three-worker company. compare this cost with the option of building a network that includes your home office and two satellite locations. here are some questions you may want to consider: do i need a firewall to protect my company's data? are my two new workers' job responsibilities primarily mobile? are they going to be doing enough work in the field to justify owning laptops? what software needs to be installed in their computers for network connections (desktop vs. laptop)?! i will give 100 points and ! !