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xenn
8 days ago
11

A tobacco company claims that the amount of nicotine in its cigarettes is a randomvariable with mean 2.2 mg and standard deviati

on .3 mg. However, the sample mean nicotine content of100 randomly chosen cigarettes was 3.1 mg. What is the approximate probability that the sample meanwould have been as high or higher than 3.1 if the company’s claims were true?
Mathematics
1 answer:
PIT_PIT [9.1K]8 days ago
8 0

Response:

0.0000

Unusual

To explain step-by-step:

A tobacco company asserts that the nicotine content in its cigarettes behaves as a random variable with a mean of 2.2 mg and a standard deviation of.3 mg.

This means the population parameters are

\mu =2.2 \\s = 0.3

The likelihood that the sample average would equal or exceed 3.1

=P(X\geq 3.1)\\=P(Z\geq \frac{3.1-2.2}{\frac{0.3}{\sqrt{100} } } )\\=P(Z\geq 30)\\

equals 0.0000

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A rectangular prism must have a base with an area of no more than 27 square meters. The width of the base must be 9 meters less
Leona [9271]

Answer:

The upper limit for the height of the prism is 12\ m

Step-by-step explanation:

Let

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L=W+6 -----> equation C

Insert equation B into equation C

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Substituting equations B and D into inequality A

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consult the attached figure

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thus

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The maximum height of the prism equals 12\ m

8 1
23 days ago
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Which equation represents a proportional relationship with a constant of proportionality of 14? y = x + 14 y = 14x 14y = x y = x
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The equation that demonstrates a proportional relationship, maintaining a constant of proportionality equal to 14, is: Here,  and are proportional with a constant of proportionality of 14.
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Zane is a dangerous fellow who likes to go rock climbing in active volcanoes. One time, when he was 20 meters below the edge of
babunello [8412]

Response:

la respuesta está abajo

Explicación paso a paso:

Debemos encontrar la ecuación para poder graficar.

De acuerdo a la afirmación, la ecuación sería:

E = v * t - Ei

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A continuación, debemos calcular los valores correspondientes:

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Si graficamos, tendríamos la imagen anexa:

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7 days ago
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