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2 years ago

A sample of 25 provided a sample mean x = 14 and a sample standard deviation s = 4.32.

Mathematics

1 answer:

lys-0071 [83]2 years ago

5 0

The value of the z test statistic will be 2.55.

<h3>What is the z test statistic?</h3>

The z test statistic is a statistical evaluation of a value's correlation to the mean of a collection of values, expressed in terms of standard deviation.

The z test statistics is given as

z = (x – μ) / σ

Where μ is the mean, σ is the standard deviation, and x is the sample.

A sample of 25 provided a sample mean μ = 14 and a sample standard deviation σ = 4.32.

Then the value of the z test statistic will be

z = (x – μ) / σ

z = (25 - 14) / 4.32

z = 11 / 4.32

z = 2.546 ≈ 2.55

More about the z test statistic link is given below.

brainly.com/question/15016913

#SPJ1

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Simplify -5-√-44<br><br> i have no idea

Tatiana [17]

Answer:

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Step-by-step explanation:

The square root of a negative number does not exist in the set of real numbers so it would be Undefined

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2 years ago

A recipe calls for 14cup of brown sugar for every 23cup of white sugar. How many cups of brown sugar are required for every cup

photoshop1234 [79]

Note: Consider all the numeric values are in the fraction form. Like $14\to \dfrac{1}{4}$ , $23\to \dfrac{2}{3}$ etc.

Given:

A recipe calls for $\dfrac{1}{4}$ cup of brown sugar for every $\dfrac{2}{3}$ cup of white sugar.

To find:

The number of cups of brown sugar that are required for every cup of white sugar.

Solution:

We know that,

Required brown sugar for $\dfrac{2}{3}$ cup of white sugar = $\dfrac{1}{4}$ cup

Using this, we get

Required brown sugar for 1 cup of white sugar = $\dfrac{\dfrac{1}{4}}{\dfrac{2}{3}}$ cup

$=\dfrac{1}{4}\times \dfrac{3}{2}$ cup

$=\dfrac{3}{8}$ cup

So, $\dfrac{3}{8}$ cup of brown sugar is required for every cup of white sugar.

Therefore, the correct option is B.

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2 years ago

The endpoint is the ___ of the angle

Phoenix [80]

Hey there!

ANSWER: <u>vertex</u>

<h2>EXPLANATION:</h2>

Fill in the blank:

The endpoint is the <u>vertex</u> of the angle.

This is your answer because an angle is formed by two rays which are the sides of an angle and they have an endpoint called the vertex.

Hope this helps!

$-TestedHyperr$

6 0

3 years ago

Read 2 more answers

What is the equation of this line in standard form? −8x+7y=25 −9x+8y=−23 −8x+9y=−23 −8x+9y=23

kvasek [131]

<span>−8x+7y=25 is already in standard form, altho some people would prefer to re-write it as

</span><span>−8x+7y-25 = 0.

You have shared 4 equations here. Next time, please separate them with commas or semi colons, or type just 1 equation per line, for increased clarity. Thanks.</span>

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3 years ago

What number is missing from the rule table

mr_godi [17]

C. 7. because if you divide the value for the missing term (take 28 for example) and divided it by the value of i (4) you will get 7. (28÷4=7)

3 0

3 years ago