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
DerKrebs [107]
3 years ago
11

A sample of n = 4 scores is selected from a population with m = 40 with s = 8, and the sample mean is M = 43. What is the standa

rd error for the sample mean?
Mathematics
1 answer:
vladimir2022 [97]3 years ago
5 0
Standard error (SE)
se=   \frac{s}{ \sqrt{n} }
Or

se =  \sqrt{ \frac{ {s}^{2} }{n} }

Therefore, SE of the mean = (8)/(2) =4
You might be interested in
Point b is the midpoint of ac-. if ab= 4x+2 and ac=10x-6, find the length of ac
Natasha2012 [34]

let's bear in mind that B is the midpoint and thus it cuts a segment into two equal halves.

\bf \underset{\leftarrow \qquad \textit{\large 10x-6}\qquad \to }{\boxed{A}\stackrel{4x+2}{\rule[0.35em]{10em}{0.25pt}} B\stackrel{\underline{4x+2}}{\rule[0.35em]{10em}{0.25pt}\boxed{C}}} \\\\\\ AC=AB+BC\implies 10x-6=(4x+2)+(4x+2)\implies 10x-6=8x+4 \\\\\\ 2x-6=4\implies 2x=10\implies x=\cfrac{10}{2}\implies x= 5 \\\\[-0.35em] ~\dotfill\\\\ AC=(4x+2)+(4x+2)\implies AC=[4(5)+2]+[4(5)+2] \\\\\\ AC=22+22\implies AC=44

3 0
3 years ago
Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal plac
valentinak56 [21]

Answer:

tan(θ) = 0, 0.577, -0.577

Step-by-step explanation:

3tan³(θ) - tan(θ) = 0

tan(θ)(3tan²(θ) - 1) = 0

tan(θ) = 0

tan²(θ) = ⅓ tan(θ) = +/- sqrt(⅓)

tan(θ) = 0, sqrt(⅓), -sqrt(⅓)

tan(θ) = 0, 0.577, -0.577

To find θ values, domain is required

6 0
3 years ago
Please help ASAP. Need it for homework
Slav-nsk [51]
Speedy Taxis
you will put 30 instead of X in each equation and see which one is the cheapest
you put 30 beacuse it is said 30 miles and also said That X is the mile
Do you understand?
6 0
3 years ago
a factory made 39 jars of creamy peanut butter and 61 jars of chunky peanut butter. what percentage of the jars of peanut butter
Tanya [424]

Answer:

39%

Step-by-step explanation:

thats the anser cuz because um

6 0
2 years ago
Read 2 more answers
Find the slope of the line through each pair of points (0,16)(4,-19)
Juliette [100K]
Use slope formula
(y1-y2)/(x1-x2)

(16 - -19)/(0 - 4) = 35/-4 
4 0
3 years ago
Read 2 more answers
Other questions:
  • Help please ASAP quickly
    14·1 answer
  • What is the slope of the line that passes through the points (-3, -4) and (1, 2)?
    11·1 answer
  • 8 over negative 4 ÷ negative 3 over 9.
    5·2 answers
  • In order to inscribe a circle in a triangle, which line must you construct?
    12·2 answers
  • 20 time 1000 time 8898 time 2345 divided by 10
    13·1 answer
  • Hello i am bored and wondering if anyone is down to zoom or sum
    14·1 answer
  • For the function F(x) = 2x^2-31x-51, where is the function increasing and positive? ( for all X values greater than what number
    11·1 answer
  • At the end of 10 basketball games, a teams mean score is 35 points per game. At the end of 11 games, their mean score has gone d
    12·1 answer
  • A positive negative or no correlation the number of hours a plane in flight in the number of miles flown
    8·1 answer
  • V(d)V, left parenthesis, d, right parenthesis models Aria's vertical distance from the top of the valley (in kilometers) after w
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!