Question
A candy machine distributor collects the coins from 100 machines. The standard deviation is $3.25. With probability 98%, what is the maximum error about the true mean that will result?
Answers
PsyDAG
98% = mean ± 2.325 SEm
SEm = SD/√n
SEm = SD/√n
Heather
=2.325(3.25/ square root of 100)
=75.5625
=75.5625