1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
scoray [572]
2 years ago
8

How to calculate sample size with standard deviation

Mathematics
1 answer:
VLD [36.1K]2 years ago
8 0

Answer:

Step 1: Calculate the mean of the data—this is \muμmu in the formula.

Step 2: Subtract the mean from each data point. These differences are called deviations. Data points below the mean will have negative deviations, and data points above the mean will have positive deviations.

Step 3: Square each deviation to make it positive.

Step 4: Add the squared deviations together.

Step 5: Divide the sum by the number of data points in the population. The result is called the variance.

Step 6: Take the square root of the variance to get the standard deviation

You might be interested in
Identify the type I error and the type II error that corresponds to the given hypothesis. The proportion of people who write wit
SCORPION-xisa [38]

Answer:

Type I error is to Reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is actually 0.29.

Type II error is Fail to reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is different from 0.29.

Step-by-step explanation:

We are given the following hypothesis below;

Let p = <u><em>proportion of people who write with their left hand</em></u>

So, Null Hypothesis, H_0 : p = 0.22     {means that the proportion of people who write with their left hand is equal to 0.22}

Alternate Hypothesis, H_A : p \neq 0.22      {means that the proportion of people who write with their left hand is different from 0.22}

Now, Type I error states that we conclude that the null hypothesis is rejected when in fact the null hypothesis was actually true. Or in other words, it is the probability of rejecting a true hypothesis.

So, in our question; Type I error is to Reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is actually 0.29.

Type II error states that we conclude that the null hypothesis is accepted when in fact the null hypothesis was actually false. Or in other words, it is the probability of accepting a false hypothesis.

So, in our question; Type II error is Fail to reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is different from 0.29.

4 0
3 years ago
Need Help Urgently !!<br> Drag a reason to each box to complete the flowchart proof.
m_a_m_a [10]

Answer:

does anyone know the answer????????

Step-by-step explanation:

aaaaaaaaahhhhhh pleaseeeeeeeeee fasssssssstttttttttttttttttttt someeeoneeeeeeeeeeeeeeeee

6 0
3 years ago
Read 2 more answers
PLEASE HELP!!! thank you very much
Anon25 [30]

Answer:

whats a turning point thx for point also we have same pillow

Step-by-step explanation:

i have whit fussy tooooooooooooooooooooo

6 0
3 years ago
Which polynomial correctly combines the like terms and puts the given polynomial in standard form? -5x^3y^3+8x^4y^2-xy^5-2x^2y^4
victus00 [196]

Given:

The polynomial is:

-5x^3y^3+8x^4y^2-xy^5-2x^2y^4+8x^6+3x^2y^4-6xy^5

To find:

The simplified form of the given polynomial in standard form.

Solution:

We have,

-5x^3y^3+8x^4y^2-xy^5-2x^2y^4+8x^6+3x^2y^4-6xy^5

Combining the like terms, we get

=-5x^3y^3+8x^4y^2+(-2x^2y^4+3x^2y^4)+8x^6+(-xy^5-6xy^5)

=-5x^3y^3+8x^4y^2+x^2y^4+8x^6-7xy^5

Now, rewrite this polynomial in standard form.

=8x^6+8x^4y^2-5x^3y^3+x^2y^4-7xy^5

Therefore, the required polynomial in standard form is 8x^6+8x^4y^2-5x^3y^3+x^2y^4-7xy^5.

8 0
3 years ago
I need #1 done (show work) will give brainliest
allochka39001 [22]

Step-by-step explanation:

<u>Statement                                                        Reason                               </u>

∠5 and ∠7 are vertical angles                        Vertical angles theorem

m∠5 = m∠7                                                      Definition of vertical angles

m∠5 = -2(3x - 4), m∠7 = 3(x - 3) - 1                  Given

-2(3x - 4) = 3(x - 3) - 1                                       Substitution property of equality

-6x + 8 = 3x - 9 - 1                                            Distributive property

3x + 6x = 8 + 10                                               Addition property

9x = 18                                                              Addition property

x = 18/9                                                             Division property

x = 2                                                                  Proved

6 0
3 years ago
Other questions:
  • What is the solution set of |–x| = –10?
    5·2 answers
  • We can use the right outside diagonal of the empty Lacsap's triangle as the coefficients of a polynomial: $$t^3 + 6t^2 + 12t + 8
    15·1 answer
  • I need help finding the circumference of F
    13·1 answer
  • Help me out please guys
    8·1 answer
  • If /61 is the longest side length in the triangle, find the value of x that makes the triangle above a right triang
    15·1 answer
  • Find the distance (D) Round your answer the nearest tenth.PLEASE HELP!!
    6·1 answer
  • What is the quotient of (125-8x^3)/(25+10x+4x^2)<br><br> a)-2x+5<br> b)2x-5<br> c)-2x-5<br> d)2x+5
    15·2 answers
  • Could someone pls help me If you know it pls ASAP thank you 
    10·2 answers
  • 25 divided by 100 using long divison
    9·2 answers
  • Please help I am very behind on my math
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!