Bank cards At a major credit card bank, the percentages
of people who historically apply for the Silver, Gold, and
Platinum cards are 60%, 30%, and 10%, respectively. In
a recent sample of customers responding to a promotion,
of 200 customers, 110 applied for Silver, 55 for Gold,
and 35 for Platinum. Is there evidence to suggest that the
percentages for this promotion may be different from the
historical proportions?
a) State the hypothesis
b) State the P value
c) State the X2 statistic
d) State your conclusion in context of the problem.
