For questions 9-13,the duration of time from first exposure to HIV infection to AIDS diagnosis is called the incubation period. The incubation period of a random sample of 9 people living with HIV is given below (in years):

12.09.513.57.210.56.312.54.36.9

Select your answers from the following list:

a. 9.5

b. 29.0

c. 9.2

d. 843.7

e. 3.18

f. 1768.0

g. 27.4

h. 32.3

i. 196.4

Q 9

Question 9

Calculate the mean(0.5 points)

Select one:

a. 9.5

b. 29.0

c. 9.2

d. 843.7

e. 3.18

f. 1768.0

g. 27.4

h. 32.3

i. 196.4

Q 10

Question 10

Calculate the standard deviation(1 point)

Select one:

a. 9.5

b. 29.0

c. 9.2

d. 843.7

e. 3.18

f. 1768.0

g. 27.4

h. 32.3

i. 196.4

Q 11

Question 11

Calculate the median(0.5 points)

Select one:

a. 9.5

b. 29.0

c. 9.2

d. 843.7

e. 3.18

f. 1768.0

g. 27.4

h. 32.3

i. 196.4

Q 12

Question 12

If the observation "6.3" above was changed to "1.5", what would have to the sample mean?(0.5 points)

Select one:

a. Increase

b. Decrease

c. Remains the same

Q 13

Question 13

If the observation "6.3" above was changed to "1.5", what would have to the sample median?(0.5 points)

Select one:

a. Increase

b. Decrease

c. Remains the same

Q 14

Question 14

If the observation "6.3" above was changed to "1.5", what would have to the sample deviation?(0.5 points)

Select one:

a. Increase

b. Decrease

c. Remains the same