Math Solutions

[See Solution] A total of 300 observations of Bob Ramos, an assembly-line worker, were made over a 40 -hour work week. The sample also showed that Bob was

Question: A total of 300 observations of Bob Ramos, an assembly-line worker, were made over a 40 -hour work week. The sample also showed that Bob was busy working (assembling the parts) during 250 observations.

  1. Find the percent of time Bob was working.
  2. If you want a confidence level of 95% and if 3% is an acceptable error, what size should the sample be?
  3. Was the sample size adequate?

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