In: Statistics and Probability
Carry out a one-tailed test to determine whether the population
proportion of
traveler’s check buyers who buy at least $2500 in checks when
sweepstakes prizes
are offered as at least 10% higher than the proportion of such
buyers when no
sweepstakes are on.
Population 1: With sweepstakes
n1 = 300
x1 = 120
? = 0.40
Population 2: No sweepstakes n2 = 700
x2 = 140
? 2= 0.20