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storchak [24]
3 years ago
8

Animal researchers studying cows and horses conducted a two-sample t-test for a difference in means to investigate whther grazin

g cows eat more grass, on average, than grazing horses. All conditions for inference were met, and the test produced a test statistic of t=1.664 and a p-value of 0.0487. Which of the following is a correct interpretation of the p-value?
Mathematics
1 answer:
qaws [65]3 years ago
8 0

Answer: Reject the null hypothesis because the p-value is less than 0.05

Step-by-step explanation:

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If the expression f^2+g^4-2f+1 is rewritten in the form a^2+(g^2)^2, what must be the value of a?
sdas [7]

Answer: √(f^2 - 2f + 1) = a

Step-by-step explanation:

We have that:

f^2+g^4-2f+1 =  a^2+(g^2)^2

And we want to find the value of a, so we should isolate it.

f^2 + g^4  - 2f + 1 = a^2 + g^(2*2) = a^2 + g^4

where i used that (x^y)^z = x^(y*z)

We can remove the term g^4 in both sides of the equation and get:

f^2 - 2f + 1 = a^2

now we can apply the square rooth to both sides and get

√(f^2 - 2f + 1) = a

So we just found the value of a.

6 0
3 years ago
A board is 4 feet 8 inches long how long is the board inches
Otrada [13]

the board is 56 inches long.

how i did this was

12 * 4 = 48

48 + 8 = 56

<em>hope this helps :)</em>

7 0
3 years ago
Find the unit rate.<br> 48 cupcakes in 6 boxes=cupcakes per box
natka813 [3]

Answer: 8 cupcakes per box

Step-by-step explanation: "Per box" means in 1 box, so we can rewrite the given statement using fractions as

<em>48 cupcakes/6 boxes</em> = <em>__ cupcakes/1 box</em>.

To find out what goes in the blank, notice that we

have a 1 in the denominator of our second fraction.

So we want to find a fraction that is equivalent

to 48/6 that has a 1 in the denominator.

If we divide the numerator and denominator of 48/6 by 6,

we get the equivalent fraction 8/1 or <em>8 cupcakes/1 box</em>.

So now we have <em>8 cupcakes/1 box = __cupcakes/1 box</em>.

So an 8 must go in the blank which means that the unit rate

for 48 cupcakes in 6 boxes is <em>8 cupcakes per box</em>.

6 0
3 years ago
Read 2 more answers
Evaluating to Determine Equivalent Expressions
ruslelena [56]

Answer:

:photo

Step-by-step explanation:

7 0
2 years ago
Please show work and solve :)
andreyandreev [35.5K]

Answer:

c = 24

Step-by-step explanation:

1/3c - 7 = 1

add 7 to both sides

1/3c = 8

now multiply 3 to both sides

c = 24

7 0
2 years ago
Read 2 more answers
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