BUSA2023-quiz_2
Quiz by Hanlin Shang
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5 questions
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- Q1To study teaching experience by lecturers at MQ, a random sample is selected. The numbers of teaching years in the sample are 2, 4, 7, 11, 30. What is the range of the data set?2728990s
- Q2To study teaching experience by lecturers at MQ, a random sample is selected. The numbers of teaching years in the sample are 2, 4, 7, 11, 30. What is the interquartile range of the data set?9722890s
- Q3To study teaching experience by lecturers at MQ, a random sample is selected. The numbers of teaching years in the sample are 2, 4, 7, 11, 30. Which observations in the data set are outliers?23011790s
- Q4The number of publications by each research centre is independently distributed across centres and across time. Based on the data over the last 10 years, the standard deviation of the number of publications per year by centre X is 11 and the standard deviation of the number of publications per year by centre Y is 5. What is the standard deviation of the number of publications per year by a department that is home to both centres X and Y?1371511.7790s
- Q5The number of teaching years of lecturers at MQ, X, follows a normal distribution with a mean of 5 and a standard deviation of 11. What is the mean and standard deviation of the Z-score of X?mean = 5, standard deviation = 11mean = 11, standard deviation = 5mean =5, standard deviation = 121mean = 0, standard deviation = 190s