Which of the following symbols represents the size of a population?
a. 2
b.
c.
d. N
Question 2
A random sample of 64 SAT scores of students applying for merit scholarships showed an average of 1400 with a standard deviation of 240 . The margin of error at 95 confidence is
a. 1.998.
b. 50.07.
c. 80.
d. 59.94.