Answer:
Step-by-step explanation:
Given Parameters
Mean, 
= 180
total samples, n = 20
Standard dev, 
= 30
= 1 - 0.95 = 0.05 at 95% confidence level
Df = n - 1 = 20 - 1 = 19
Critical Value, 
, is given by
a).
Confidence Interval, 
, is given by the formula
b).
Critical Value, 
, is given by
Confidence Interval, , is given by
= 180 +/- 14.0403
= 165.9597 < < 194.0403
Answer:
it is closer to 0 :):):):):)
We know that
the equation of a vertical parabola in vertex form
y=a*(x-h)²+k
(h,k)------> (0,5)
y=a*(x-0)²+5
y=a*x²+5
substitute the point (2,9) in the equation
9=a*(2)²+5------> 9=4*a+5-------> 4*a=9-5-----> 4*a=4-----> a=1
the equation of the vertical parabola is
y=x²+5
the equation of a horizontal parabola in vertex form
x=a*(y-k)²+h
(h,k)------> (0,5)
x=a*(y-5)²+0
x=a*(y-5)²
substitute the point (2,9) in the equation
2=a*(9-5)²------> 2=16*a------> a=1/8
the equation of the horizontal parabola is
x=(1/8)*(y-5)²
the answer isthe equation of the vertical parabola is y=x²+5
the equation of the horizontal parabola is x=(1/8)*(y-5)²
see the attached figure
Answer:
67.6
Step-by-step explanation:
first, to find the mean you add up all the numbers and you would get 338. Next, you divide by how many numbers there are (5) so 338 divided by 5 equals 67.6
Answer:
$6.96
Step-by-step explanation:
5.25% of $5.79
5.79 × 5.25/100 = $0.303975 or $0.30
15% of $5.79
5.79 × 15/100 = $0.8685 or $0.87
total
$0.29 + $0.87 + $5.79 = $6.96
