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IgorC [24]
3 years ago
9

If you are a human resources manager and you randomly selected 5 job candidates to interview out of hundreds of equally-qualifie

d candidates that applied for a job without replacement, what would be the standard error of the mean if the standard deviation is 1?
Mathematics
1 answer:
hjlf3 years ago
5 0

Answer:

Standard error of mean = 0.4472 ≈ 0.45

Step-by-step explanation:

Data provided in the question:

Number of randomly selected candidates, n = 5

Standard deviation of the data, σ = 1

Now,

Standard error of mean is calculated using the formula as

⇒ Standard error of mean = \frac{\textup{Standard deviation}}{\sqrt{n}}

on substituting the respective values, we get

⇒ Standard error of mean = \frac{\textup{1}}{\sqrt{5}}

or

⇒ Standard error of mean = \frac{\textup{1}}{\sqrt{5}}

or

⇒ Standard error of mean = \frac{\textup{1}}{2.236}

or

⇒ Standard error of mean = 0.4472 ≈ 0.45

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Hannah is flying a kite with a trying that is 60 feet long. If Patricia is standing directly below the kite and 16 feet away fro
Nataly_w [17]

Answer:

74.5°

Step-by-step explanation:

Hannah, the kite and Patricia form the vertices of a right-angled triangle with the hypotenuse side the length of the string L = 60 feet and adjacent side the distance between Hannah and Patricia = d = 16 feet.

Let the angle between the string and the sand be Ф.

By trigonometric ratios,

cosФ = adjacent/hypotenuse

= d/L

= 16 feet/60 feet

= 0.2667

Ф = cos⁻¹(0.2667)

= 74.53°

≅ 74.5°

So, he angle between the string and the sand is Ф = 74.5°

7 0
3 years ago
1. For the function f(x) = 3x + 1, find f(-2). (substitute -2 in for x)
puteri [66]

Answer:

f(-2) = -5

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 3x + 1

f(-2) is x = -2

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                    f(-2) = 3(-2) + 1
  2. Multiply:                               f(-2) = -6 + 1
  3. Add:                                     f(-2) = -5
4 0
3 years ago
Please help urgent!!! Find the value of x in the triangle shown below!
qwelly [4]

Answer:

Step-by-step explanation:

so we know a few things about t his triangle,  it's a special one  :P  ,   it's called isosceles because  two of the legs are the same length, which also mean that the angle x  is the same at the other unknown angle sooo  there are  2 x's   if that makes sense?  and then we can solve this , b/c we also know that the interior angles of a triangle add up to 180°

180 = 32 + 2x

148 = 2x

74 =x

∠x = 74°

4 0
3 years ago
(2p + 4) + 5 (p-1) - (p+7)
jonny [76]

<em>Your answer will be, </em><em>"6p - 8"</em>

Thanks,

<em>Deku ❤</em>

6 0
3 years ago
-6, 12 ,-24 ,48 what would be the next term in this sequence (help ASAP please )
patriot [66]
The next term would be -96 ! your just adding the term twice and alternating it by making it a negative and a positive
3 0
3 years ago
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