Mathematics, 17.03.2020 21:54 peterradu47781

Randomly selected statistics students of the author participated in an experiment to test their ability to determine when 60 seconds had passed. forty students yielded a sample mean of 58.3 seconds. Assume that o=9.5 seconds.
A. Find the best point estimate of the mean time for all statistics students. Use the correct symbol.
B. Find ththe z a/2 for a 78% confidence level. (Dont do the entire interval - just find the z)
C. What is the preferred method of estimation? Point estimate or Confidence Interval?

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