The container of orange juice held 53 cups of juice. If a serving of orange juice is g of a cup of orange juice, to the near

Determine the number of degrees of freedom for the two-sample t test or CI in each of the following situations. (Round your answ

tekilochka [14]

Answer:

a

$df = 24.32$

b

$df = 30.10$

c

$df = 30.7$

d

$df = 25.5$

Step-by-step explanation:

Generally degree of freedom is mathematically represented as

$df = \frac{ [\frac{ s^2_i }{m} + \frac{ s^2_j }{n} ]^2 }{ \frac{ [ \frac{s^2_i}{m} ]^2 }{m-1 } +\frac{ [ \frac{s^2_j}{n} ]^2 }{n-1 } }$

Considering a

a) m = 12, n = 15, s1 = 4.0, s2 = 6.0

$df = \frac{ [\frac{ 4^2 }{12} + \frac{ 6^2 }{15} ]^2 }{ \frac{ [ \frac{4^2}{12} ]^2 }{12-1 } +\frac{ [ \frac{6^2}{15} ]^2 }{15-1 } }$

$df = 24.32$

Considering b

(b) m = 12, n = 21, s1 = 4.0, s2 = 6.0

$df = \frac{ [\frac{ 4^2 }{12} + \frac{ 6^2 }{21} ]^2 }{ \frac{ [ \frac{4^4}{12} ]^2 }{12-1 } +\frac{ [ \frac{6^2}{21} ]^2 }{21-1 } }$

$df = 30.10$

Considering c

(c) m = 12, n = 21, s1 = 3.0, s2 = 6.0

$df = \frac{ [\frac{ 3^2 }{12} + \frac{ 6^2 }{21} ]^2 }{ \frac{ [ \frac{3^4}{12} ]^2 }{12-1 } +\frac{ [ \frac{6^2}{21} ]^2 }{21-1 } }$

$df = 30.7$

Considering c

(d) m = 10, n = 24, s1 = 4.0, s2 = 6.0

$df = \frac{ [\frac{ 4^2 }{10} + \frac{ 6^2 }{24} ]^2 }{ \frac{ [ \frac{4^2}{10} ]^2 }{10-1 } +\frac{ [ \frac{6^2}{24} ]^2 }{24-1 } }$

$df = 25.5$

3 0

3 years ago

Can someone help me with this

ivann1987 [24]

Answer:

56x

Step-by-step explanation:

Think of it an a triangle and a rectangle. The area of the rectangle is obviously 13 x 4x, which is 52x

for triangle, the hypotenuse is C, Right hand side is B and the side that is in the shape is B.

Area of triangle = (bh) / 2

B = 13 - 9, so B = 4

A = 6x - 4x, so A = 2x

the area is 2x x 4, which is 8x.

8x / 2 = 4x

The area is 4x + 52x, so the final answer is 56x

8 0

2 years ago

Find the greatest common factor of 2 and 4

grin007 [14]

The greatest common factor of 2 and 4 is 2

5 0

3 years ago

2 times 5 times 10 to the 5th power

xxMikexx [17]

10 to the 5th power is 100,000. 2 X 5 is 10.
10 X 100,000 is one million.

the answer is 1,000,000. (one million)

5 0

3 years ago

Read 2 more answers

Can someone help me with #69

alex41 [277]

Ok, so you have a right angle, a given angle, and a given side for the left triangle. We are going to call angle 47° angle A. So angle A=47°, the side connecting the two triangles is directly opposite A making it side "a". We are calling the right angle C and the hypotenuse (the longest side which is 11) "c". So, Sin A=a/c and since we don't have "a" we multiply both sides by "c" changing it to (c Sin A)=a. 11•Sin(47°)=a

11•(0.7313537016)=a
8.044890718=a

8 0

3 years ago