Uppoe a follow-up tudy coniting of peronal interview i to be conducted to determine the mot important factor in electing a method for filing taxe. A. How many 18–34-year-old mut be ampled to find an expected number of at leat
25 who ue an online tax program to prepare their federal income tax return?
b. How many 35– 44 -year-old mut be ampled to find an expected number of at leat
25 who ue an online tax program to prepare their federal income tax return?
c. How many 65-year-old mut be ampled to find an expected number of at leat 25
who ue an online tax program to prepare their federal income tax return?
d. If the number of 18–34-year-old ampled i equal to the value identified in part (a),
what i the tandard deviation of the percentage who ue an online tax program?
e. If the number of 35–44 -year-old ampled i equal to the value identified in part (b),
what i the tandard deviation of the percentage who ue an online tax program?