Question: Moving to another question will save this response. Question 17 In a work sampling study, a welder was found to be idle for 30% of

Moving to another question will save this response. Question 17 In a work sampling study, a welder was found to be idle for 30% of the time. Find out the number of observations neeeded to conform accuarcy of 1.5% (z = 1.96 for 95% confidence level) [5 marks) TT T Arial 3 (12pt) T 's Path: P hp

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