question archive The average and standard deviation of thickness of a steel plate from 25 samples are measured as 33 mm and 3 mm, respectively
The average and standard deviation of thickness of a steel plate from 25 samples are measured as 33 mm and 3 mm, respectively
Subject:StatisticsPrice: Bought3
The average and standard deviation of thickness of a steel plate from 25 samples are measured as 33 mm and 3 mm, respectively. (8 marks) a) If the actual mean thickness is 30 mm, determine the probability of getting a sample mean result as high or higher than 33 mm. Write necessary assumption(s). b) What does your answer of part a imply about the true thickness being 30 mm?
