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3 years ago

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Put a random answer or a correct answer. If you put. A correct answer put “correct” next to it if you put a random answer put “r

andom” next to it

1 answer:

FrozenT [24]3 years ago

3 0

Answer:

25in (correct)

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A small university is concerned with monitoring its electricity usage in its Student Center. Specifically, its officials want to

valkas [14]

Answer:

Since p-value > ∝, H0 is accepted

Step-by-step explanation:

Calculating gives the following results.

<u>ANOVA Table</u>

<u>Source DF Sum Mean F Statistic P-value</u>

<u> of Square Square</u>

Groups 6 191.61 31.935 0.020 0.999

(b/w groups)

Error

(within 14 21736.08 1552.577

<u> groups) </u>

<u>Total 20 21927.69 1096.385 </u>

1. H0 hypothesis

Since p-value > ∝, H0 is accepted.

Hence the averages of all groups considered to be equal.

Or the difference between the averages of all groups is not big enough to reject H0.

2. P-value

P-value equals 0.999. This means that if we would reject H0, the chance of type1 error (rejecting a correct H0) would be too high i.e (99.99%)

The bigger p-value supports H0.

3. The statistics

The test statistic F equals 0.020, which lies in the accepted range: [-∞ : 2.8477]

6 0

3 years ago

The height of a rocket, launched from the ground, is given by the function y = 30t - 5t^2, where y is in meters and t is in seco

Alex17521 [72]

Answer:Rocket Launch A toy rocket is launched straight up in the air from level ground. The distance (in ft) the rocket is above the ground (the position function) is <em>f (t) = 170t -16t2 at any time t (in sec) . Find </em>

Step-by-step explanation:

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3 years ago

If (x+1)(x-3)=12, then which of the following statements is true?

Semmy [17]

Answer:

C. x-5=0 or x+3=0

Step-by-step explanation:

Given,

$(x+1)(x-3)=12$

$x^2+1x-3x-3=12$ ( By multiplication )

$x^2-2x-3=12$ ( By operating like terms )

$x^2-2x-3-12=0$ ( Subtracting 12 on both sides )

$x^2-2x-15=0$

$x^2-5x+3x-15=0$ ( By middle term splitting )

$x(x-5)+3(x-5)=0$

$(x+3)(x-5)=0$

By the zero product property,

$(x+3)=0\text{ or }(x-5) =0$

Hence, option C is correct.

6 0

3 years ago

Read 2 more answers

What was the main purpose of the Declaration of Independence?

aev [14]

Answer:

The main purpose of America's Declaration of Independence was to explain to foreign nations why the colonies had chosen to separate themselves from Great Britain. The Revolutionary War had already begun, and several major battles had already taken place.

Step-by-step explanation:

3 0

3 years ago

Marta runs a mandarin-orange fruit stand. She is talking to an employee, Maribel, on the phone and trying to tell her the equati

Ivanshal [37]

Answer:

Fifty more than half the number of the oranges is one-hundred-and-twenty.

The sum of fifty and half the number of oranges is the same as one-hundred-twenty.

Step-by-step explanation:

The equation is 50 + one-half m = 120.

Assume the number of oranges=m

50+1/2m=120

1/2m=120-50

1/2m=70

m=70÷1/2

=140

All statement that applies includes:

1. Fifty more than half the number of the oranges is one-hundred-and-twenty.

50+1/2m=120

2. The sum of fifty and half the number of oranges is the same as one-hundred-twenty.

50+1/2m=120

Martha can use the two statements above to communicate the correct equation

8 0

3 years ago

Read 2 more answers