3 years ago

I need help plzzzzzzzz

Mathematics

2 answers:

lukranit [14]3 years ago

8 0

D is the correct answer

Nastasia [14]3 years ago

6 0

The answer is letter C.

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Step-by-step explanation:

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3.5 hours: $10 1/2 hour: $1.25. which is the better deal

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A square in the board below and a letter in the word ATTENTION is chosen at

kolezko [41]

Answer:

4 /15

Step-by-step explanation:

From the number cube :

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P(number greater than 4) = 16 / 20 = 4/5

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3 years ago

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3 years ago

The average cost of tuition, room and board at small private liberal arts colleges is reported to be $8,500 per term, but a fina

Vlada [557]

Answer:

The test statistic for this test is 3.82.

Step-by-step explanation:

The null hypothesis is:

$H_{0} = 8500$

The alternate hypotesis is:

$H_{1} > 8500$

Our test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this question:

$X = 8745, \mu = 8500, \sigma = 1200, n = 350$

$t = \frac{8745 - 8500}{\frac{1200}{\sqrt{350}}} = 3.82$

The test statistic for this test is 3.82.

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4 years ago