Answer:
(B) (0.396, 1.712)
Step-by-step explanation:
From the information given;
Confidence Interval = 0.95
Significance Level 
The confidence interval for regression coefficient beta (whereby in this case it is the coefficient of the diameter) is expressed by:
= 
From the regression coefficient, the estimated value of beta^  = 1.054


 
        
             
        
        
        
Ask your teacher he should fish d comb hangdog Shabbat
        
             
        
        
        
Answer:

Step-by-step explanation:
You only need two points on a line to find the equation for that line.
We are going to use 2 points that cross that line or at least come close to. You don't have to use the green points... just any point on the line will work.  You might have to approximate a little.
I see ~(67.5,67.5) and ~(64,65).
Now once you have your points, we need to find the slope.
You may use  where
 where  are points on the line.
 are points on the line. 
Or you can line up the points vertically and subtract then put 2nd difference over 1st difference.
Like this:
 (  64  ,   65  )
-( 67.5, 67.5 )
--------------------
-3.5        -2.5
So the slope is -2.5/-3.5=2.5/3.5=25/35=5/7.
Now use point-slope form to find the equation:
 where
 where  is the slope and
 is the slope and  is a point on the line.
 is a point on the line.

Distribute:

Simplify:

Add 65 on both sides:

Simplify:

 
        
             
        
        
        
Answer:
n<50
Step-by-step explanation:
7/2*5n + 14<49
7n/2*5+14<49
(7n)+(2*5)14/2*5 <49
7n+10*14/2*5 <49
7n+140/2*5 <49
7n+140/10 <49
7n+140 < 10*49
7n+140 < 490
(7n+140)+(-140)<490+(-140)
7n+140-140<490-140
7n<350
7n/7 < 350/7
n<2*5^2*7/7
n<2*5^2
n<2*25
n<50