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[Steps Shown] Suppose it is believed that as many as 17.2% of adults over age 50 need job training. We wish to see if this percentage is the same among

Question: Suppose it is believed that as many as 17.2% of adults over age 50 need job training. We wish to see if this percentage is the same among the 25 to 30 age group. Determine how many of this younger age group are needed to be surveyed to estimate the proportion of non-trained persons to within 3% with 99% confidence.

  1. How many are needed to be surveyed?

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