5. A simple random sample of 6 computer programmers in Houston, Texas revealed the sex of the programmers and the following information about their weekly incomes.

Programmer

Weekly Income

Sex

A

$250

M

B

270

M

C

285

F

D

240

M

E

255

M

F

290

F

a. What is the point estimate for the average weekly income of all the computer programmers in Houston?

b. What is the point estimate for the standard deviation of the population?

c. Determine a point estimate for the proportion of all programmers in Houston who are female.