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3 years ago

I need the answer please

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

8 0

You need to provide a picture of the prism...

SpyIntel [72]3 years ago

8 0

I cant really answer without the prism

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A power plant discharges water into a river. Regulators determine that as long as the mean temperature of the discharged water i

nlexa [21]

Answer:

(A) Type I error in the context of this problem is chances of regulators believing that the mean temperature of the discharged water is more than 150°F but in actual the mean temperature of the discharged water was 150°F.

(B) Type II error in the context of this problem is chances of regulators believing that the mean temperature of the discharged water is no more than 150°F but in actual the mean temperature of the discharged water was more than 150°F.

(C) An environmental group will consider the Type II error more serious.

Step-by-step explanation:

We are given that a power plant discharges water into a river. Regulators determine that as long as the mean temperature of the discharged water is no more than 150°F, there will be no negative effects on the river’s ecosystem.

We are also given with the following hypothesis;

Null Hypothesis, $H_0$ : $\mu$ = 150°F

Alternate Hypothesis, $H_a$ : $\mu$ > 150°F

(A) Type I error states that Probability of rejecting null hypothesis given the fact that null hypothesis was true or in other words Probability of rejecting a true hypothesis.

So, Type I error in the context of this problem is chances of regulators believing that the mean temperature of the discharged water is more than 150°F but in actual the mean temperature of the discharged water was 150°F.

(B) Type II error states that Probability of accepting null hypothesis given the fact that null hypothesis was false or in other words Probability of accepting a false hypothesis.

So, Type II error in the context of this problem is chances of regulators believing that the mean temperature of the discharged water is no more than 150°F but in actual the mean temperature of the discharged water was more than 150°F.

(C) An environmental group will consider the Type II error more serious because by committing Type II error they believe that the mean temperature of the discharged water is no more than 150°F and they assume that there is no negative effects on the river’s ecosystem but in reality that the mean temperature of the discharged water was more than 150°F and it is producing negative effects on the river’s ecosystem.

8 0

3 years ago

In an engineering test, a rocket sled is propelled into a target. The sled’s distance d in meters from the target is given by th

creativ13 [48]

You're given d = 10
10 = -1.5t2 = 110
 $t^{2}$ = 220/3
since t $\geq$ 0
t = $\sqrt 220/3$
I apologize if this is wrong!

6 0

3 years ago

The value of y varies directly

Elanso [62]

Answer:

Step-by-step explanation:

Answer is 7/3

6 0

3 years ago

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I need you To reply To This question I need numbers 14-17

slava [35]

The area of a circle is:
$\pi \times r \times r$
"r" being the radius and π being 3.14
14. The diameter is 12. So, to get the radius, we would need to halve it. So, the radius would be 6.
Now we plug in 6 for r and 3.14 for π which makes it
$3.14 \times 6 \times 6$
which equals 113.04
15. The diameter is 9, so to get the radius we need to halve it to get 4.5
Plug in 4.5 for r and 3.14 for π and we get
$3.14 \times 4.5 \times 4.5$
which equals 63.585
16. The diameter is 18, so to get the radius we need to halve it to get 9
Plug in 9 for r and 3.14 for π and we get
$3.14 \times 9 \times 9$
which equals 254.34
17. The diameter is 8, so to get the radius we need to halve it to get 4.
Plug in 4 for r and 3.14 for π and we get

3 0

3 years ago

Hiiii help please ahh

Brilliant_brown [7]

Answer:

Question 1 Answer : x^2 - 2y^2

Question 2 Answer: x^2 $\pi$ - 36 $\pi$

7 0

3 years ago

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