The significance level is defined as.

a. None of the answer options are correct.
b. the probability of a Type II error.
c. the probability that the power of the test is at least 0.9.
d. the probability of a Type I error.

This graph compares the cost of room and board at educational institutions in texas.

Description: write function lastfirst() that takes one argument—a list of strings of the format "lastname, firstname" —and returns a list consisting of two lists: (a) a list of all the last names (b) a list of all the first names

George is working as a programming team lead. which statements correctly describe the skills that he requires?