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Studentka2010 [4]
3 years ago
13

A technology manufacturer is a supplier of fiber optic cables. They are interested in expanding their business and offering fibe

r optic cable installation to internet providers. A recent article in a technology journal states only 45% of internet providers currently offer fiber optic internet in the United States. As the first step in hypothesis testing, the technology manufacturer claims the proportion of internet providers offering fiber optic internet in the United States is different than 45%. What does this claim represent in hypothesis testing?
Group of answer choices

A.critical value

B.alternative hypothesis

Ctest statistic

Dsignificance level
Mathematics
1 answer:
ExtremeBDS [4]3 years ago
8 0

Answer:

B.alternative hypothesis

Step-by-step explanation:

In this case, the null hypothesis is that 45% of internet providers currently offer fiber optic internet in the United States.

The claim that the proportion of fiber optic internet providers is different from 45% is an alternative hypothesis since it directly contradicts the null hypothesis presented.

The answer is B. alternative hypothesis

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PLEASE HELP ME
sineoko [7]

Answer:

C. Exponential

Step-by-step explanation:

If the function is linear, the differences will be equal.

d₁ = y₁ − y₀ = 4.2 − 0.6 = 3.6

d₂ = y₂ − y₁ = 29.4 − 4.2 = 25.2

d₃ = y₃ − y₂ = 205.8 − 29.4 = 176.4

d₄ = y₄ − y₃ = 1440.6 − 205.8 = 1234.8

The differences are not equal, so this is not linear.

If the function is quadratic, the differences of the differences will be equal.

d₂ − d₁ = 25.2 − 3.6 = 21.6

d₃ − d₂ = 176.4 − 25.2 = 151.2

d₄ − d₃ = 1234.8 − 176.4 = 1058.4

The differences of the differences are not equal, so this is not quadratic.

If the function is exponential, the ratios will be equal.

r₁ = y₁ / y₀ = 4.2 / 0.6 = 7

r₂ = y₂ / y₁ = 29.4 / 4.2 = 7

r₃ = y₃ / y₂ = 205.8 / 29.4 = 7

r₄ = y₄ / y₃ = 1440.6 / 205.8 = 7

The ratios are equal, so the function is exponential.

5 0
3 years ago
The number of light bulbs sold each day in two different hardware stores is represented in the box-and-whisker plots below.
puteri [66]

Answer:

A. Store A

Step-by-step explanation:

The median is shown by the very middle line of the box. The middle-most line on the box of store A is greater than that of Store B

4 0
3 years ago
Maria's plant grew 3 1/4 inches every month for 2 1/2 months. How many inches did Maria's plant grow during that time?
Vadim26 [7]

Answer: 8.125 inches

Step-by-step explanation: Ok so if the plant grew 3.25 inches every month, and there were 2.5 months, you need to multiply 3.25 by 2.5 to get the total amount of growth. So that would be 8.125

5 0
3 years ago
(08.01 MC)Below are the data collected from two random samples of 500 American adults on the number of hours they spend doing le
Mazyrski [523]

Answer:

Dan is correct

Step-by-step explanation:

From the question, we have:

Hours:1\ 2\ 3\ 4\ 5

Required

The average

The average hour is calculated using:

\bar x = \frac{\sum x}{n}

So, we have:

\bar x = \frac{1+2+3+4+5}{5}

\bar x = \frac{15}{5}

\bar x = 3

<em>Dan calculated the mean as 3; while Bret calculated the mean as 4.</em>

<em>Hence, we can conclude that Dan s correct</em>

4 0
2 years ago
halona walks 1.93 kilometers in 23 minutes, assuming constant speed write a proportion that represents how many kilometers in x
Afina-wow [57]
Dividing 1.93km by 23 minutes, you get 0.083 km per minute, or 5.03 km per hour
4 0
3 years ago
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