Answer:
1.97
Step-by-step explanation:
The null hypothesis is:
The alternate hypotesis is:
Our test statistic is:
In which X is the sample mean, 
is the hypothesis tested(null hypothesis), 
is the standard deviation and n is the size of the sample.
In this problem, we have that:
So
Answer:
The first one is 0.01667 and the second one is 0.37037
Step-by-step explanation:
You will want this equation to be in y=mx+b, because you already have the slope and y-intercept. X will be the number of days she has had the plant, and Y will be the height of the tree, because it is the variable being affected by the X. The slope, or the M, is 2.5 because this is the number of centimeters the tree grows per day. The y-intercept is 5, because this is the height of the tree originally. So, the equation is Y=2.5X+5. To solve the number of days Margo will have had the plant, plug in 65 (the height of the plant after a certain amount of days) into the Y variable and solve for X. So, 65=2.5X+5. Subtract 5 from both sides to get 60=2.5X, then divide both sides by 2.5 to get X=24. So, she will have owned the plant for 24 days.
Answer:
the answer for this is A
Step-by-step explanation:
B,D,Erespectively representing the numbers are: 8,16,19.
8 as seen is the lowest.
16 as seen is the median .
19 as seen is the greatest.
Therefore the answer is A.
Answer:
48
Step-by-step explanation:
25% of x = 0.25
12/0.25 = 48
