

Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
Statistics Module 4 practice questions
Typology: Exams
1 / 3
This page cannot be seen from the preview
Don't miss anything!
4.The presence of any chemical reactions 5.Changes in color localized to the organism or the surrounding media 6.Capture (or draw) images of any of the characteristics described above Question 3 10 / 10 pts While observing an unknown sample of limited amounts, a researcher must determine the following observations: (1) the presence of any motility and (2) its Gram status using the same sample—the liquid sample cannot be divided. Which would you determine first and why? Your Answer: You would need to determine the motility before gram status. You can observe motility on a wet mount and then heat fix your sample to gram stain your sample. If you were to begin with using gra
Suppose that in a large hospital system, that the average (mean) time that it takes for a nurse to take the temperature and blood pressure of a patient is 170 seconds with a standard deviation of 40 seconds. What is the probability that 20 nurses selected at random will havea mean time of 165 seconds or less to take the temperature and blood pressure of a patient?
Calculate the z-score: So, we want to find P(Z < -.56) on the standard normal probability distribution table. Recall that P(Z < - .56) = .28774. Therefore, there is a .28774 probability that a simple random sample of 20 nurses will have a mean time of 165 seconds or less.