Question 8 (1 point) There are 125 students in 9th grade at New Hope School. All 125 9th graders are going on a trip. Twelve of the students will win a small prize. Each student is given a
number. 1 - 125. Each number is written on a small piece of paper and the papers
are put into a large bag and mixed thoroughly. Then, 12 numbers are randomly
selected from the bag.
What type of sampling is this?

random sampling

convenience sampling

systematic sampling

Ostratified sampling

Asample of 200 rom computer chips was selected on each of 30 consecutive days, and the number of nonconforming chips on each day was as follows: the data has been given so that it can be copied into r as a vector. non. conforming = c(10, 15, 21, 19, 34, 16, 5, 24, 8, 21, 32, 14, 14, 19, 18, 20, 12, 23, 10, 19, 20, 18, 13, 26, 33, 14, 12, 21, 12, 27) #construct a p chart by using the following code. you will need to enter your values for pbar, lcl and ucl. pbar = lcl = ucl = plot(non. conforming/200, ylim = c(0,.5)) abline(h = pbar, lty = 2) abline(h = lcl, lty = 3) abline(h = ucl, lty = 3)