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3 years ago

Find the median for the following data set: 11, 13, 17, 11, 10, 15, 11, 12, 13, 15

Mathematics

2 answers:

vodka [1.7K]3 years ago

7 0

Answer:

A, 12.5

Putting them in order was this:

10, 11, 11, 11, 12, 13, 13, 15, 15, 17

and the median is between 12 and 13, which is 12.5

(Hope that helps you. ^^)

Sati [7]3 years ago

5 0

The answer is A) i think i hope i’m right

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A fast food restaurant executive wishes to know how many fast food meals teenagers eat each week. They want to construct a 99% c

Lana71 [14]

Answer:

The minimum sample size required to create the specified confidence interval is 2229.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.99}{2} = 0.005$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.005 = 0.995$ , so $z = 2.575$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

What is the minimum sample size required to create the specified confidence interval

This is n when $M = 0.06, \sigma = 1.1$

$0.06 = 2.575*\frac{1.1}{\sqrt{n}}$

$0.06\sqrt{n} = 2.575*1.1$

$\sqrt{n} = \frac{2.575*1.1}{0.06}$

$(\sqrt{n})^{2} = (\frac{2.575*1.1}{0.06})^{2}$

$n = 2228.6$

Rounding up

The minimum sample size required to create the specified confidence interval is 2229.

7 0

3 years ago

Which price is equivalent to $1.50 for 1 pound of apples?

olga_2 [115]

A. 6 pounds of apples for $9
9/6=1.5=$1.50 per pound

6 0

3 years ago

Johnny left home and drove west 6 miles to Bakersville for flowers. Then he drove 8 miles north to his girlfriend's house. How f

QveST [7]

So use pythagorean theorem to find the straight distance between hhouses

legs are 6 and 8

a^2+b^2=c^2
6^2+8^2=c^2
36+64=c^2
100=c^2
squrer root both sides
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4 years ago

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST

Elis [28]

Answer:

Step-by-step explanation:

move constant

x+7 ≥ 12

subtract

x≥ 12-7

solution

x ≥ 5

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3 years ago

Determine any data values that are missing from the table, assuming that the data represent a linear function.

AleksAgata [21]

Answer:

Step-by-step explanation:

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3 years ago