A full IRB Committee meeting is convened on October 18, 2009. One agenda item is a new research proposal to evaluate how mothers interact with their learning-disabled child. The inclusion criteria require the children to be a minimum of five years of age. The protocol requires the mother of the child to look at the child without any expression and not to talk to the child for three minutes. The IRB determined that the risks in the research would be greater than minimal. There were a number of problems with the protocol, but the IRB eventually approved the protocol as a more than minimal risk study at a duly constituted full IRB committee review on February 15, 2010. Accrual and treatment are planned to continue through 2011. Which of the following best describes IRB continuation review requirements for this study?

Areal estate agent is considering changing her cell phone plan. there are three plans to choose from, all of which involve a monthly service charge of $20. plan a has a cost of $.42 a minute for daytime calls and $.17 a minute for evening calls. plan b has a charge of $.52 a minute for daytime calls and $.15 a minute for evening calls. plan c has a flat rate of $80 with 275 minutes of calls allowed per month and a charge of $.38 per minute beyond that, day or evening.a. determine the total charge under each plan for this case: 150 minutes of day calls and 70 minutes of evening calls in a month. (do not round intermediate calculations. round your answer to 2 decimal places. omit the "$" sign in your response.)c. if the agent will use the service for daytime calls, over what range of call minutes will each plan be optimal? (round each answer to the nearest whole number.include the indifference point itself in each answer.)d. suppose that the agent expects both daytime and evening calls. at what point (i.e., percentage of total call minutes used for daytime calls) would she be indifferent between plans a and b?