Answer Happy

A systematic random sample of 10 bags of cat food was selected from a pet food store. The caloric intake (kilocalories per serving) for each bag is listed below 92, 110, 116, 117, 118, 122, 123, 125, 142, 156 Using the 1.5 IQR rule to determine the outliers in the above dataset, which of the following statements is CORRECT? Select one: The values 92, 142, and 156 are outliers. O The value 156 is the only outlier. O The values 92 and 156 are outliers. O The value 92 is the only outlier. O The values 142 and 156 are outliers.
The owners of a certain apartment complex would like to test, based on a sample of size n, if the average salary of their tenants is greater than 59 thousand dollars per year. Based on past experience the distribution of salaries is right-skewed. Which of the following are the appropriate assumptions for the test? Select one: O Sample should be random and the sample size should be at least 30. O Sample should be random and the expected counts should be at least 5. O Sample should be random and the successes/failures should be at least 10. O Population should be random and the sample size should be at least 30. O Population should be random and the successes/failures should be at least 10.
A librarian is interested in finding the average number of pages per book in their library. There are 16 sections of books at this library. The librarian organized all books in alphabetical order, randomly selected a book and then selected every 43th book after that book until they have sampled 270 books. The librarian then calates the average number of pages per book from the selected books. Which sampling technique is used? Select one: O This is simple random sampling. O This is a census. O This is systematic sampling. O This is cluster random sampling. O This is stratified random sampling.