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3 years ago

Explain how finding 4×30 he can help you find 4×5384 then find the both products

1 answer:

3 0

You can do this by doing 4 x 384, and you also want to find 4 x 5384 is then all you have to do is multiply the product of that by 5,000. Or to make life easier, do 5 times the product, and then add 3 zeros to the answer.

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B) (y=0,2x–5 y=-0,7x+4

Iteru [2.4K]

Answer:

0.9x-9 x=10

Step-by-step explanation:

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3 years ago

A random sample of 25 boxes of cereal have a mean of 372.5grams and a standard deviation of 15 grams. Does an average box of cer

ss7ja [257]

Using the t-distribution, it is found that since the test statistic is less than the critical value for the right-tailed test, there is not enough evidence to conclude that an average box of cereal contain more than 368 grams of cereal.

At the null hypothesis, it is tested if the average box of cereal does not contain more than 368 grams, that is:

$H_0: \mu \leq 368$

At the alternative hypothesis, it is tested if it contains, that is:

$H_1: \mu > 368$

We have the standard deviation for the sample, hence, the t-distribution is used to solve this question.

The test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

The parameters are:

$\overline{x}$ is the sample mean.

$\mu$ is the value tested at the null hypothesis.

s is the standard deviation of the sample.

n is the sample size.

In this problem, the values of the parameters are: $\overline{x} = 372.5, \mu = 368, s = 15, n = 25$ .

Hence, the value of the test statistic is:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{372.5 - 368}{\frac{15}{\sqrt{25}}}$

$t = 1.5$

The critical value for a right-tailed test, as we are testing if the mean is greater than a value, with a significance level of 0.05, with 25 -1 = 24 df, is of $t^{\ast} = 1.71$ .

Since the test statistic is less than the critical value for the right-tailed test, there is not enough evidence to conclude that an average box of cereal contain more than 368 grams of cereal.

You can learn more about the use of the t-distribution to test an hypothesis at brainly.com/question/13873630

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2 years ago

What is the slope of the line that passes through the points (1,1) and(-1,-5)

bija089 [108]

$\frac{2}{ - 6}$

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3 years ago

Write a rule for the linear function .

KatRina [158]

Answer:

Step-by-step explanation:

change in y for each change in x:-2

y-intercept: 6

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3 years ago

Determine if the following sample is random or not. Mr. Newman chooses the first four students to be center leaders.

lapo4ka [179]

What following example. There is no example for us to help u with

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3 years ago