Concept explainers
The midterm and final exam grades for a statistics course are provided in the data set below. Jaymes, a student in the class, scored 86 on both exams. Treat the given data sets as samples.
Midterm: 80, 78, 85, 82, 79, 79, 78, 86, 80, 84, 78, 84, 80, 84, 81, 78, 81, 82, 78, 84
Final: 81, 88, 68, 69, 69 81, 82, 86, 76, 71, 72, 68, 77, 86, 68, 83, 84, 71, 81, 87
z-score for midterm: 1.857
z-score for final: 1.181
Based on the z-scores calculated above, which of Jaymes's grades is more unusual, the midterm grade or the final exam grade?
- Select the correct answer below:
A. The absolute value of the z-score for the final exam grade is greater than for the midterm grade, so the final exam grade is more unusual.
B. The absolute value of the z-score for the midterm exam grade is less than for the final grade, so the midterm grade is more unusual.
C. The absolute value of the z-score for the midterm exam grade is greater than for the final grade, so the midterm grade is more unusual.
D. The absolute value of the z-score for the final exam grade is less than for the midterm grade, so the final exam grade is more unusual.
Trending nowThis is a popular solution!
Step by stepSolved in 3 steps
- find median for given data 12,15,36,35,45,56,58,56,96,68,98,9,75,25,15,49arrow_forwardFind the median for the following data set: 4, 17, 9, 11, 26, 11, 13, 7,22, 11 * O 11 O 12 O 13.1 18.5arrow_forwardUse the following data set: 8, 3, 5, 2, 8, 4, 2, 6, 7, 5, 8 to answer questions The range of the data is……..arrow_forward
- A local store owner is interested in finding the mean age of her customers. She randomly surveys 82 customers and records their age. Identify the population, sample, variable, type of variable, parameter, and statistic.arrow_forwardPlease answer the questions in the photo. TY! Both screenshots are for the same questionarrow_forwardFind the mean, median and mode of the given sample. How would the mean, and median change if the highest salar is omitted? $250,00, $300,000, $350147, $232,425, $360,000, $1,231,421, $810,000, $229,000arrow_forward
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
- Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman