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deff fn [24]
3 years ago
5

In the past, the mean running time for a certain type of flashlight battery has been 9.7 hours. The manufacturer has introduced

a change in the production method and wants to perform a hypothesis test to determine whether the mean running time has increased as a result. The hypotheses are: H 0: μ = 9.7 hours H a: μ > 9.7 hours where μ is the mean running time of the new batteries . Explain the meaning of a Type I error.
Mathematics
1 answer:
Nadya [2.5K]3 years ago
6 0

Answer:

Step-by-step explanation:

From the information given:

\mathbf{H_o: \mu = 9.7 \ hours}

\mathbf{H_1: \mu > 9.7 \ hours}

The type 1 error is rejecting \mathbf{H_o} when

The meaning of Type 1 error is rejecting the claim that the mean running time is 9.7 hours when actually the mean running time is greater than 9. 7 hour.

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Answer:

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Step-by-step explanation:

5 0
3 years ago
2. A function g(x) is defined by the diagram shown below.
skad [1K]

Answer:

Step-by-step explanation:

diagram attached represents a function g(x).

Circle (1) (circle on the left) represents the set of domain (input values) and circle (2) represents the range (output values).

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   Therefore, g(7) = 9 will be the answer.

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c). Inverse of the function g(x) will have,

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   Since, "a function can't have two output values for the same input value".

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8 0
4 years ago
Inferential statistics a. involve measuring characteristics that are important to a problem and bringing them together in summar
algol13

Answer:

d.

Step-by-step explanation:

Inferential Statistics is one of two statistical methods that is used to analyze data by drawing conclusion about a bigger population from a sample. In other words, inferential statistics  allows a researcher to make assumptions and arrive at conclusions about a larger group known as the population, by using just a small portion  known as the sample of the population as a study. The study of this small portion is then used to explain the behaviour of the entire population. Random sampling is carried out to ensure that the sample is a true representation of the population

It involves:

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4 0
4 years ago
After spending $43 on groceries and $19 on a book,Mrs Groom had $16 left How much did Mrs.Groom have to begin with?
zzz [600]

Ok so you add 43 plus 19 and then you get the answer of 62 dollars answer 62$

7 0
3 years ago
Read 2 more answers
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Dmitry [639]
7(3x-2)+4(x+5)
= 7*(3x)-7*2+4x+4*5 (distributive property)
= 21x -14 +4x +20
= 25x +6

Final answer: 25x+6.

Hope this helps~
5 0
3 years ago
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