Author Question: Sampling errors can a. be avoided by increasing the sample size to at least 30. b. be avoided if ... (Read 1092 times)

BrownTown3 · **on:** Jun 24, 2018

Sampling errors can
a. be avoided by increasing the sample size to at least 30.
b. be avoided if the sample is increased so that it will be at least 5 of the population.
c. be avoided by using probabilistic sampling.
d. not be avoided.

Question 2

Thirty-five percent of the students who enroll in a statistics course go to the statistics laboratory on a regular basis. Past data indicates that 40 of those students who use the lab on a regular basis make a grade of B or better. On the other hand, 10 of students who do not go to the lab on a regular basis make a grade of B or better. If a particular student made an A, determine the probability that she or he used the lab on a regular basis.