A manufacturer of TV tubes has for many years used a process giving a mean tube life of 4700 hours and a standard deviation of 1460 hours. A new process is tried to see if it will increase the life significantly. A sample of 100new tubes gave a mean life of 5000 hours. Is the new process better than the old one at a 1% level of significance?

Claire wants to include animations in her presentation slides. which element of the presentation program’s interface will have the options for animation? claire should use the to include animations in her presentation slides.

An insurance company estimates the probability of an earthquake in the next year to be 0.0015. the average damage done to a house by an earthquake it estimates to be $90,000. if the company offers earthquake insurance for $150, what is company`s expected value of the policy? hint: think, is it profitable for the insurance company or not? will they gain (positive expected value) or lose (negative expected value)? if the expected value is negative, remember to show "-" sign. no "+" sign needed for the positive expected value

Type of deposit reserve requirementcheckable deposits $7.8 - 48.3 million 3%over $48.3 million 10noncheckable personal savings and time deposits 0refer to the accompanying table. if a bank has $60 million in savings deposits and $40 million in checkable deposits, then its required reserves are$1.2 million.