-the highwat department paves one section of an interstate with type A concrete
ID: 3049898 • Letter: #
Question
-the highwat department paves one section of an interstate with type A concrete and an adjoining section with type B concrete and observes how long it takes unti cracks appear in each.
whether type A concrete provides better traction than type B concrete
the difference between cost of the teo types of concrete
the difference between the measured length of time it takes for cracks to appear in each type of concrete
-Researches are interested in learning more about the age of women when they marry for the first time so they survey 500 married or divorced women and ask them how old they were when they first married. The collection of the age of the 500 woem when they first married is a
sample
population
statistic
parameter
-The Directos of Food Operations at a small college campus wants to determine student concerns about cafeteria food
a randomly selected group of 30 students entering the dining hall before dinner
a randomly selected group of 30 registered students
a ramdoly selected group of 30 students who have signed food contracts
a randmly selected group of 30 sudents leaving the dining half after dinner
Explanation / Answer
Here, 500 women represents sample whereas collection of the age of the 500 women represents statistics
The Directos of Food Operations at a small college campus wants to determine student concerns about cafeteria food
a ramdoly selected group of 30 students who have signed food contracts
As this will increase the diversity in sample in comparison to just people coming out after dinner
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