A survey of 800 workers indicated that approximately 465 have invested in an individual retirement account. Motional data suggests that 48% of workers invest in individual retirement accounts. Test an appropriate hypothesis with a=0.05 and state your conclusion.
H0: The percentage of people who have invested in an individual retirement account is
a. Greater than b. less than c. equal to d. different from ---- 48%
HA: The percentage of people who have invested in an individual retirement account is
Greater than b. less than c. equal to d. different from ---- 48%