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Allisa [31]
4 years ago
8

An ANOVA procedure is used for data obtained from four populations. Four samples, each comprised of 30 observations, were taken

from the four populations. The numerator and denominator (respectively) degrees of freedom for the critical value of F are
A. 3 and 30
B. 4 and 30
C. 3 and 119
D. 3 and 116
Mathematics
1 answer:
tatiyna4 years ago
7 0

Answer:

D. 3 and 116

Step-by-step explanation:

d.f.N = k - 1 (numerator degrees of freedom) = 4 - 1 = 3

N = 4 × 30 = 120

d.f.D = N - k (denominator degrees of freedom) = 120 - 4 =116

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6 0
3 years ago
Condense (cos92°)(cos133°)-(sin92°)(sin133°) into a singular trigonometric function expression, then find the exact value.
goldenfox [79]

Answer:

-1/√2  

Step-by-step explanation:

According to trigonometry identity

cos(A+B) = cosAcosB - sinA sinB

Given the expression

(cos92°)(cos133°)-(sin92°)(sin133°)

This can be expressed as cos(92+133) where A = 92, B = 133

(cos92°)(cos133°)-(sin92°)(sin133°)

= cos(92+133)

= cos225

= -0.7071

= -1/√2

Hence the exact value is  -1/√2  

7 0
3 years ago
What is the equation of a circle whose center is at the origin and contains the point (2, 3).?
pishuonlain [190]
( x - 0 )^2 + ( y - 0 )^2 = 4
4 0
3 years ago
5r^2 - 44r + 120 = -30 + 11r <br> solve the quadratic equations by factoring
TiliK225 [7]
Hey I hope this helps you
You first need to move everything to one side to equal zero.
Then factor out the 5
After you should be left with a quadratic equation easier to work with
What multiplies to 30 and adds to -11?
This would be 6 and 5
But since it is -11 those two numbers need to be negative as well

8 0
3 years ago
Read 2 more answers
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