Some of the statements below refer to the null hypothesis, some to the alternate hypothesis.

State the null hypothesis,H₀, and the alternative hypothesis,H_a, in terms of the appropriate parameter (orp).

Multiple Choice

• Part (a)
• The mean number of years Americans work before retiring is 34.

a) H₀:34,H_a:>34

b) H₀:34,H_a:<34

c) H₀:p34,H_a:p>34

d) H₀:p34,H_a:p= 34

e) H₀:p= 34,H_a:p34

f) H₀:p34,H_a:p<34

g) H₀:34,H_a:= 34

h) H₀:= 34,H_a:34

• Part (b)
• At most 60% of Americans vote in presidential elections.

a) H₀:p= 0.60,H_a:p>0.60

b) H₀:p>0.60,H_a:p0.60

c) H₀:= 60,H_a:>60

d) H₀:<60,H_a:>60

e) H₀:p<0.60,H_a:p>0.60

f) H₀:p0.60,H_a:p>0.60

g) H₀:>60,H_a:60

h) H₀:60,H_a:>60

• Part (c)
• The mean starting salary for San Jose State University graduates is at least $100,000 per year.

a) H₀:100,000,H_a:<100,000

b) H₀:<100,000,H_a:100,000

c) H₀:p100,000,H_a:p<100,000

d) H₀:p<100,000,H_a:p100,000

e) H₀:100,000,H_a:>100,000

f) H₀:p100,000,H_a:p>100,000

g) H₀:= 100,000,H_a:<100,000

h)H₀:p= 100,000,H_a:p<100,000

• Part (d)
• Twenty-nine percent of high school seniors get drunk each month.

a) H₀:= 29,H_a:>29

b)H₀:p<0.29,H_a:p>0.29

c) H₀:p= 0.29,H_a:p>0.29

d) H₀:= 29,H_a:29

e) H₀:<29,H_a:>29

f) H₀:29,H_a:= 29

g) H₀:p0.29,H_a:p= 0.29

h) H₀:p= 0.29,H_a:p0.29

• Part (e)
• Fewer than 5% of adults ride the bus to work in Los Angeles.

a) H₀:p0.05,H_a:p>0.05

b) H₀:p<0.05,H_a:p0.05

c) H₀:5,H_a:<5

d) H₀:p= 0.05,H_a:p0.05

e) H₀:p0.05,H_a:p<0.05

f) H₀:<5,H_a:5

g) H₀:= 5,H_a:5

h) H₀:5,H_a:>5

• Part (f)
• The mean number of cars a person owns in her lifetime is not more than 10.

a) H₀:<10,H_a:10

b) H₀:= 10,H_a:10

c) H₀:10,H_a:>10

d) H₀:p= 10,H_a:p10

e) H₀:p<10,H_a:p10

f) H₀:p10,H_a:p>10

g) H₀:p10,H_a:p<10

h) H₀:10,H_a:<10

• Part (g)
• About half of Americans prefer to live away from cities, given the choice.

a) H₀:1/2,H_a:>1/2

b) H₀:p= 0.50,H_a:p0.50

c) H₀:p0.50,H_a:p<0.50

d) H₀:p0.50,H_a:p= 0.50

e) H₀:p0.50,H_a:p>0.50

f) H₀:=1/2,H_a:1/2

g) H₀:1/2,H_a:<1>

h) H₀:1/2,H_a:=1/2

• Part (h)
• Europeans have a mean paid vacation each year of six weeks.

a) H₀:= 6,H_a:6

b) H₀:p6,H_a:p<6

c) H₀:p6,H_a:p>6

d) H₀:6,H_a:>6

e) H₀:6,H_a:= 6

f) H₀:p6,H_a:p= 6

g) H₀:6,H_a:<6

h) H₀:p= 6,H_a:p6

• Part (i)
• The chance of developing breast cancer is under 11% for women.

a) H₀:p<0.11,H_a:p0.11

b) H₀:p0.11,H_a:p>0.11

c) H₀:11,H_a:<11

d) H₀:= 11,H_a:11

e) H₀:11,H_a:>11

f) H₀:<11,H_a:11

g) H₀:p= 0.11,H_a:p0.11

h) H₀:p0.11,H_a:p<0.11

• Part (j)
• Private universities' mean tuition cost is more than $20,000 per year.

a) H₀:p= 20,000,H_a:p20,000

b) H₀:p>20,000,H_a:p20,000

c) H₀:>20,000,H_a:20,000

d) H₀:20,000,H_a:>20,000

e) H₀:20,000,H_a:<20,000

f) H₀:p20,000,H_a:p>20,000

g) H₀:p20,000,H_a:p<20,000

h) H₀:= 20,000,H_a:20,000