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brilliants [131]
2 years ago
12

Is the right arm or left arm stronger? Twenty five right handed people were studied. They were asked to do as many bicep curls a

s possible, first with their right arm and then with their left arm. Note:The differences were calculated as right-left. The 95% confidence interval for the true mean difference is (-9.242, 0.2472). Which of the following statements is the correct interpretation? Group of answer choices There is convincing evidence that the right arm can perform, on average, a different number of curls than the left arm. The left arm can perform more bicep curls than the right arm. The right arm can perform more bicep curls than the left arm. There is not enough evidence to say that the right arm and left arm can perform a different number of curls on average.

Mathematics
1 answer:
melisa1 [442]2 years ago
5 0

Answer:

The p-value should be higher than 0.05

Step-by-step explanation:

solution is found below

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We are given that lines a and c intersect at point S. Translate line a down line c until point S reaches point Q. Call the new l
Pavel [41]

Answer:

The lines a and b are parallel

Step-by-step explanation:

When we will translate line a, then the new line b will be formed.

Now, as translation preserves orientation each point on line a will be equidistant from line b , thus holding the condition and satisfying the property of two parallel lines.

Hence, line a and line b are parallel to each other.


8 0
2 years ago
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In seven years, Huang will be two times as old as he was last year. How old is he now?
kodGreya [7K]

He's 9 years old.  :-)

In seven years, he'll be 16, and 16 is two times older than 8 - the age he was last year.

5 0
2 years ago
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Find the answer The weight of an elephant is 10 to the 3rd power times the weight of a cat .If the the elephant weighs 14,000 po
Hitman42 [59]

Answer:

14\ pounds

Below is the procedure that was used to find the answer.

Step-by-step explanation:

Let be "e" the weight in pounds of the elephant and "c" the weight in pounds of the cat.

According to the information provided in the exercise, we know that The weight of an elephant is 10^3 times the weight of a cat. Based on this we can write the following equation:

e=10^3c

If the weight in pounds of the elephant is:

e=14,000

We must substitute this value into the equation and then solve for "c" in order to find the weight in pounds of the cat.

Then we get:

14,000=10^3c\\\\\frac{14,000}{10^3}=c\\\\c=14

3 0
2 years ago
A dairy milker's gross pay per week is $546. If she works 30 hours per week, how much does she earn per hour?
loris [4]
$18.20

Explanation:
$546/30hours=$18.20

Plz mark brainiest
8 0
2 years ago
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This table represents a quadratic function. x y 0 -3 1 -3.75 2 -4 3 -3.75 4 -3 5 -1.75 What is the value of a in the function’s
serg [7]

Answer:

a = 0.25

Step-by-step explanation:

Our strategy to solve this problem will be to use the information given in the table to obtain  first the value of c in the quadratic equation which has the form ax^2 + bx + c and then form a system of 2 linear equations  and solve for the coefficients a and b as follow:

from x=0 and y=-3   a*0 + b* 0 + c = - 3

c = -3

from x=1 and  y= -3.75

a*(1) + *(1) + (-3) = -3.75

a + b = -3.75 + 3 = -0.75

from x= 2 and y = -4

a* (2)^2 + b*(2) + (-3) = -4

4a + 2b = -4 +1

4a + 2b = -1

Now we can solve the system f equations by elimination:

a + b = -0.75

4a + 2b = -1

multiply first equation by -2 and add to the second and  get

-2a - 2b = +1.50

4a + 2b = -1

2a = 0.50 and substituting into any of the equations get b =  -1

so the quadratic equation has a= 0.25 b= -1  c= -3

we can even  plug the any of the other values for  x given in the table and check the answer.

8 0
2 years ago
Read 2 more answers
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