D Question 4 2.38 pts The University of Kentucky attempts to collect answers to three questions about Covid-19 from every member of the student body, in order to draw conclusions about the student body. What are they carrying out? Census O Stratified random sample O Cluster sample O Systematic sample . Previous Nex Not saved Submit QuizD Question 7 2.38 pts Time Ru 3 Minut The Nielsen media company wants to estimate how many viewers watched the Super Bowl. They divide the population into 3 categories by age, and then divide each category by gender, adding up to 6 categories total. They then randomly select a sample from each category. Which type of sampling method is being used? O Stratified random O Systematic O Simple random Cluster Previous Next Not saved Submit QuizD Question 9 2.38 pts Time If the alternative hypothesis is u > 0 what type of test is being performed? O Three-tail O Two-tail O Left-tail O Right-tail Previous Next Not saved Submit QuizD Question 10 2.38 pts Time Ru 3 Minute Every member of the Freshman class at a university has to take a freshman seminar in the Fall semester. Everyone is in a seminar and no one is in more than one seminar. The university randomly selects a subset of these seminars, and then surveys every student in those classes. Which type of sampling method is being used? O Cluster Stratified random O Simple random O Systematic . Previous Nett Not saved Submit QuizDI Question 11 2.28 pts Time Running 3 Minutes, 20 Se Arthur calculates the mean and the median for a data set, and finds that they are far apart. What might be the reason for this? The data have outliers The data follow a normal distribution The standard deviation is very low There is no mode in the data . Previous Next Not saved Submit QuizQue Que D Question 13 2.38 pts Time Running 3 Minutes, 1 Using the standard normal distribution, what is the probability that z