Final answer:
The manufacturer's claim that the product would increase output per machine by at least 29 units per hour was not met, as the actual increase observed by the line manager was only 26 units on average.
Step-by-step explanation:
The sales representative for a manufacturer claimed that their product would increase output per machine by at least 29 units per hour. After installing the product on 15 machines, the line manager found the average increase to be only 26 units with a standard deviation of 6.2. Therefore, the most accurate statement from the given options would be B) The product did not meet the claimed increase in output. This conclusion is drawn because the actual increase is less than the claimed increase of 29 units per hour.