Please give explanation from the answers below :

' My Drive - Google Drive X n Homework Help - Q&A from On X G implementation of statistics in at X I + 7 X ( C' i drive.google.com/d rive/u/O/my-drive 3. Mr B owns 30 different stores in Medan. He is concerned about the absence of his workers. Below is the data regarding number of days absent for a sample of 10 workers during the last two weeks. 3 0 l 2 2 l 2 2 l 4 a. Determine the mean and the standard deviation of the sample. (5 marks) b. What is the population mean? What is the best estimate of that value? (1 marks) c. Develop a 95 percent condence interval for the population mean. (5 marks) (1. Z or t distribution should be used to calculate the condence interval and explain why (1 marks) e. Is it reasonable to conclude that the typical worker does not miss any days during the period? (2 marks) mi . A ~ _ ' 5:43PM ,0 Typeheretosearch El r: H 9 9 w I! m ' "' E\" ' 7/22/2020 E2