Question: 20-17 Suppose that the study in the preceding problem is continued and that 300 more observations are made. The cumulative total of 1,500 observations is

20-17 Suppose that the study in the preceding problem is continued and that 300 more observations are made. The cumulative total of 1,500 observations is now found to be distributed as follows:

Normal activities 1,062 Unavoidable delays 316 Avoidable delays 122 What sample size requirement is generated by these new frequencies of occurrence? Are additional observations necessary? (Ans. 1,499)

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