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jasenka [17]
3 years ago
9

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. They randomly

assigned 20 participants to either a control group or a relaxation training group and recorded the change in number of headaches each group reported the week before training to the week after training (the control group received no training). Which statistical analysis would we perform to see whether the training helped the participants in that group as compared to the control group
Mathematics
1 answer:
wolverine [178]3 years ago
3 0
A line graph or a chart table
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I need help on this problem
borishaifa [10]
C/5=-8
C=-40 hope this helps
8 0
3 years ago
Read 2 more answers
Plz help asap i really need it for 30 points
Pani-rosa [81]

Answer:

13.04 cm^2

Step-by-step explanation:

Larger Circle diameter is 12.5 cm and the smaller is 3.5 cm

The Area of a circle is A = πr^2 = πd^2/4

Larger Circle divide the diameter by 2 = 6.25 cm

Smaller Circle dive the diameter by 2 = 1.75 cm

Using above formula  A =  122.71846303085 cm^2 &  

Finally we deduct the smaller Area from the larger Area

A = 9.6211275016187 cm^2 - 9.6211275016187 cm^2

122.71846303085 cm^2 - 9.6211275016187 cm^2 =

113.0973355292 cm^2 thus 13.04 is your answer since I used the

π = 3.1415926535898

A = area

π = pi = 3.1415926535898

6 0
3 years ago
PLEASE HELP WILL GIVE BRANLIEST IF CORRECT
nevsk [136]

Answer:

1,500,000,000

Step-by-step explanation:

6 0
3 years ago
The average cost of tuition and room and board at a small private liberal arts college is reported to be $8,500 per term, but a
Tom [10]

Answer:

H₀: µ ≤ $8,500; H₁: µ > $8,500

z= +1.645

Step-by-step explanation:

From the given problem  As average cost of tuition and room and board at a small private liberal is less than the financial administrator As hypothesis is true.

As standard deviation is $ 1,200

α = 0.05

H₀: µ ≤ $8,500

if the null hypothesis is true then value for critical z is +1.645.

6 0
3 years ago
A triangle T is bounded (on three sides) by the lines x = 6, y = 0, and y = 3 2 x. A rectangle of width w is inscribed inside T.
Viktor [21]

Answer:

33.85 units^2

Step-by-step explanation:

you must first draw the triangle on the plane using the equations (see

attached file), you will have a right angle triangle with a height of 192 and a base of 6.

then you calculate the angle with the tangent function = 88.21

Then you use the small triangle to find the value of a (see attached file).

Finally, you propose an equation for X to find one of the sides of the triangle, once you have x squared it, and you already have the area,

i attached procedure

7 0
3 years ago
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