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nika2105 [10]
3 years ago
13

13/3 simplified (thanks)

Mathematics
1 answer:
NemiM [27]3 years ago
5 0

Answer:

It is already simplified.

Step-by-step explanation:

There is no more common factors between 13 or 3. I'm sorry if you were looking for a different answer. Have a great day!

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A student wanted to construct a 95% confidence interval for the mean age of students in her statistics class. She randomly selec
Alex_Xolod [135]

Answer:

95% confidence interval for the population mean is 20.255 and 17.945

Step-by-step explanation:

given data

mean = 19.1

standard deviation = 1.5

n = 9

to find out

95% confidence interval for the population mean

solution

we know 95% confidence interval formula i.e.

mean +/- t * standard deviation/\sqrt{n}   .............1

here t for 9 students 2.31 ( from t table)

so put all value n t standard deviation and mean in equation 1

= mean +/- t * standard deviation/\sqrt{n}

= 19.1 +/- 2.31 * 1.5/\sqrt{9}

= 19.1 +/- 2.31 * 1.5/\sqrt{9}  

= 20.255 and 17.945

95% confidence interval for the population mean is 20.255 and 17.945

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3 years ago
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Answer:

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marysya [2.9K]
28.8 km should be correct
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Find the value of X:)
enot [183]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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