Question:supposed in accounting firm does a study to determine the time
needed to complete one persons...
Question
supposed in accounting firm does a study to determine the time
needed to complete one persons...
supposed in accounting firm does a study to determine the time
needed to complete one persons tax forms it randomly surveys 80
people the sample mean is 30.2 hours there is a known standard
deviation of 8.0 hours the population distribution is assumed to be
normal construct a 99% confidence interval for the population mean
time to complete the tax forms.