Amedical researcher measured the pulse rates (beats per minute) of a sample of randomly selected adults and found the following student's t-based confidence interval: with 95.00% confidence, 69.267758less thanmu(pulse)less than72.331207 a) explain carefully what the software output means. b) what's the margin of error for this interval? c) if the researcher had calculated a 99% confidence interval, would the margin of error be larger or smaller?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.