Mathematics, 03.06.2021 18:00 aleiahmartin
A random sample of 12 middle school students and 12 high school students were surveyed on the amount of time they
spend doing extracurricular activities each week. The sample means and mean absolute deviations (MAD) are given.
Mean (hours) MAD (hours)
Middle School Students 2.75
0.63
High School Students
5.33
1.22
Based on the sample information, select from the drop-down lists to correctly complete the sentences.
There is
Choose...
variability in the sample of high school students than in the sample of middle school
students
The difference in sample means
Choose...
meaningful because the means are separated by
Choose...
than 2 MADs.
Based on the difference in sample means, it Choose...
be concluded that an average high school
student spends more time on extracurricular activities than an average middle school student.
Answers: 1
Mathematics, 21.06.2019 19:30
The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28
Answers: 1
Mathematics, 21.06.2019 22:20
The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap
Answers: 3
Mathematics, 21.06.2019 22:30
Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?
Answers: 1
Mathematics, 22.06.2019 05:50
Aregular octagon rotates 360 degrees about its center. how many times does the image of the octagon coincide with the preimage during the rotation?
Answers: 1
A random sample of 12 middle school students and 12 high school students were surveyed on the amount...
Chemistry, 29.07.2019 15:00
Advanced Placement (AP), 29.07.2019 15:00
Mathematics, 29.07.2019 15:00
Biology, 29.07.2019 15:00
Mathematics, 29.07.2019 15:00
History, 29.07.2019 15:00
Mathematics, 29.07.2019 15:00
Advanced Placement (AP), 29.07.2019 15:00
Biology, 29.07.2019 15:00