Answer:
A recent report estimated that 25% of all college students in the United States have a sexually transmitted disease (STD). The director of the campus health center believes that the proportion of students with STDs is higher at their campus.
According to the American Heart Association guidelines, the daily maximum amount of sugar a teenager should have is 4 teaspoons. The parents of a local high school have expressed concerns that the average daily sugar intake of their students is higher than these guidelines and have been pressuring school officials to limit unhealthy snack and beverage choices offered in the cafeteria and student store.
Step-by-step explanation:
The first two researches involve the single sample compared to mean of population.
The 3rd and 4th research involves comparing samples of men and women that is two individual groups.
Answer:
I did not understand its confusing
Answer:
785.398 ft
Step-by-step explanation:
Circumfrence = pi * diameter
Answer: 9? I’m not sure but it seems like it’s 9 as it mentions it in the problem
Answer: (c)
Step-by-step explanation:
Given
Here, 
To get 
, replace 
in 
by 
Using 
and 
it can be concluded that the domain of is all real numbers except 0.
Therefore, its domain is given by
Option (c) is correct.
