The following table cross classifies a sample (from 1998) of Americans according to their sex # and their opinion about the afterlife.

# Belief in Afterlife # Yes No or Undecided # Sex Female 509 116 # Male 398 104

# (a) Calculate a 95% confidence interval for the difference in the proportion of women and men # who believe in an afterlife (in 1998).

# (b) Interpret the interval in (a).

# (c) Based on this interval, do you feel that men and women differ with regards to belief # in an afterlife? Explain.