3 years ago

Determine the Unit Rate.

Mathematics

2 answers:

Mice21 [21]3 years ago

7 0

Answer:

$1.5 each

Step-by-step explanation:

ser-zykov [4K]3 years ago

3 0

Answer:

C.)1.50 each

Step-by-step explanation:

Hope I helped

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A simple random sample of 64 observations was taken from a large population. The population standard deviation is 120. The sampl

jeka94

Answer:

<h3>The standard error of the mean is <u>15</u></h3>

Step-by-step explanation:

Given that a simple random sample of 64 observations was taken from a large population.

Hence it can be written as n=64

The population standard deviation is 120.

It can be written as $\sigma_{\overline{X}}=120$

The sample mean was determined to be 320.

It can be written as $\overline{X}=\mu =320$

<h3>To find the standard error of the mean :</h3>

The formula for the standard error of the mean is given by

$\sigma_{\overline{X}}=\frac{\sigma}{\sqrt{n}}$

Now substitute the values in the formula we get

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