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Question 2 (12 marks) (a) A school is reviewing time taken (minutes) to finish an admission test by applicant. Below is the data of random sample 1: 49 35 36 38 33 42 Below is the summary statistics of random sample 2: Sample size 10 Mean 37.1 minutes Standard deviation 4.8 minutes Minimum 31 minutes Maximum 44 minutes By combining the above sample 1 and sample 2, find (ai) the total sample size, (aii) the combined sample mean, and (aiii) the range of time taken to finish the admission test