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vfiekz [6]
3 years ago
9

Write the proportional equation: A Hulu membership costs $8 per month.

Mathematics
1 answer:
stepladder [879]3 years ago
5 0

Answer:

y = 8 * x

Step-by-step explanation:

A proportional equation has the form of:

y = k * x

where k is the constant of proportionality

it tells us that Hulu membership costs $ 8 per month, therefore the constant of proportionality in this case is 8.

Leaving the equation as follows:

y = 8 * x

where x is the number of months and y is the total cost

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Step-by-step explanation:

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3 years ago
A government watchdog association claims that 70% of people in the U.S. agree that the government is inefficient and wasteful. Y
nata0808 [166]

Answer:

Option D) There is sufficient evidence that the true population proportion is not equal to 70%.        

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1165

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Alpha, α = 0.02

Number of people who agreed , x = 746

First, we design the null and the alternate hypothesis  

H_{0}: p = 0.7\\H_A: p \neq 0.7

This is a two-tailed test.  

Formula:

\hat{p} = \dfrac{x}{n} = \dfrac{746}{1165} = 0.64

z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

Putting the values, we get,

z = \displaystyle\frac{0.64-0.7}{\sqrt{\frac{0.7(1-0.7)}{1165}}} = -4.46

Now, z_{critical} \text{ at 0.02 level of significance } = \pm 2.33

Since,  

Since, the calculated z statistic does not lie in the acceptance region, we fail to accept the null hypothesis and reject it. We accept the alternate hypothesis.

Thus, there is enough evidence to support the claim that the true proportion differs from 70%.

Option D) There is sufficient evidence that the true population proportion is not equal to 70%.

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Answer:

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Step-by-step explanation:

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Answer:

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To find the value of anything with a sales tax simply multiply the cost by the tax.

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Now that we have the sales tax, add it to the original cost.

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You can do this for each of the sales tax problems. Then compare the answers.

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4 years ago
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