Match each scenario to the type of procedure. Mark the corresponding letter for
ID: 3265872 • Letter: M
Question
Match each scenario to the type of procedure. Mark the corresponding letter for each question. Each answer can only be used once. 8. Historically, the time needed for college students to complete a certain paper and pencil maze follows a Normal distribution, with a population mean of 70 seconds and a population standard deviation of 15 seconds. A student researcher is interested to see if the mean time will change from meditation, a group of 9 college students meditate for 30 minutes and then complete the maze for the first time. What type of test should the student researcher perform? 9. Suppose an instructor would like to compare the effectiveness between his online class and his on campus class. He considers the class format to be the treatment, where students are randomly assigned to either the online class or the campus class. Their final exam grade is the response. The final exam scores arc recorded and the average between the two class types are compared. What type of testing procedure will be most appropriate for this data? 10. Suppose the college of engineering at a university is interested in the job outlook for their graduates. They randomly sample 50 recent graduates to test whether the average time until hired is less than 6 months. Their sample yields a mean of 3.5 months and a standard deviation of 2.2 months. What type of test would be appropriate to answer their question of interest? The following tree diagram represents you! The students in the ST314 Spring class, international status and whether or not you have a social networking profile. 11. Given a domestic student is selected at random, what is the chance they don't have a social networking profile? a. 0.067 b. 0.058 c. 0.047 d. 0.942 12. What is the probability a randomly chosen student has a social networking profile? a. 0.938 b. 0.940 c. 0.935 d. 0.945Explanation / Answer
Q-8 One sample z test for a mean
Q-9-Two sample t-test
Q-10-One-sample t-test
Q-11-P(No/Demoestic)=1-0.942=0.058
Q-12- P(social=yes)
=P(yes/international)*P(international)+ P(yes/domestic)*P(domestic)
=0.933*0.185+0.942*0.815
=0.9403