"According to the Web site for the ACT College Entrance Exam, 1,300,599 U. S. high school seniors took the ACT in 2007, earning a mean composite score of 21.1, with a standard deviation of 5.0. Suppose the ACT was administered
to a random sample of 100 seniors from a large public school district in Ohio and the sample mean was 22."
Question 1
1 pts
What would be
A) the (non directional) null hypothesis, and
B) the research hypothesis
(To receive credit, you must state BOTH hypotheses.)

answer

see attachment

explanation

the given function is

this function has y-intercept at

-4 and a slope of 2.

note that, the graph has a positive slope.

the graph that represents this function is the straight line that moves upward from left to right.

the graph touches the y-axis at -4.

the correct choice is the graph shown in the attachment.

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

the answer is 2/54

step-by-step explanation: