12 - When it is accepted that the time between the production date of the aspirin and the expiration date between the population average and the sample average is maximum 15 days at 95% confidence...

Extracted text: 12 - When it is accepted that the time between the production date of the aspirin and the expiration date between the population average and the sample average is maximum 15 days at 95% confidence level, how many products should be included in the sample? (Population variance = 800, z table = 1.96) O A) 10 O B) 15 O C) 7 O D) 12 O E) 14