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Alexandra [31]
3 years ago
14

7 is 30% of what number

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
5 0
It's 30% of 23.33333 rep.
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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) <u><em>Type I error</em></u><em> 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.</em>

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) <u><em>Type II error </em></u><em>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.</em>

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
4)) What is the volume? 19 yd 12 yd 12 yd​
Zepler [3.9K]

Answer:

2,736

Step-by-step explanation:

7 0
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How many positive integers n satisfy the following condition: (130n)^50 &gt; n^100 &gt;2^200
kenny6666 [7]

Answer:

27

Step-by-step explanation:

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3 years ago
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What is slope-intercept form
mario62 [17]
The slope intercept form is y=mx+b. m is the slope, b is the y intercept,
7 0
3 years ago
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Two consecutive negative integers have a product of 2. what are the integers ?
MrRissso [65]

product is multiplication

 2 negative numbers multiplied by each other equal 2

 since it is multiplication the numbers would need to be 2 or less

 therefore the 2 numbers are -1 and -2


-1 * -2 = 2

 

6 0
3 years ago
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