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ASHA 777 [7]
3 years ago
6

Use the given information to determine which lines, if any , are parallel

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
5 0

Answer:

both are parrallel lines

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(20 points) A statistics practitioner calculated the mean and the standard deviation from a sample of 400. They are x = 98 and s
Nimfa-mama [501]

Answer:

The P-value is 0.0234.

Step-by-step explanation:

We are given that a statistics practitioner calculated the mean and the standard deviation from a sample of 400. They are x = 98 and s = 20.

Let = population mean.

So, Null Hypothesis, : = 100 {means that the population mean is equal to 100}

Alternate Hypothesis, : > 100 {means that the population mean is more than 100}

The test statistics that will be used here is One-sample t-test statistics because we're yet to know about the population standard deviation;

T.S. = ~

where, = sample mean = 98

s = sample standard deviation = 20

n = sample size = 400

So, the test statistics = ~

= -2

The value of t-test statistics is -2.

Now, the P-value of the test statistics is given by;

P( < -2) = 0.0234 {using the t-table}

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3 years ago
Chelsea mailed 2 boxes and 2 bags to her uncle in army. The two boxes weighed 8 ½ pounds each and the two bags weighed 4 ½ pound
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Step-by-step explanation:

4.5x2=9+17=26

8.5x2=17

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28

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irga5000 [103]
Subtract 19 from both sides
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Subtract x from both sides
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Divide both sides by -4
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Final answer: x=-1/2
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