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
vitfil [10]
3 years ago
15

What is the formula for the confidence interval? Then, define what each variable represents.

Mathematics
1 answer:
Alisiya [41]3 years ago
7 0
The confidence interval for a <span>(1−α)%</span> confidence level is given by
<span>
(<span>θ0</span>−<span>Z<span>α/2 </span></span><span>σ/√n</span>, <span>θ0</span>+<span>Z<span>α/2 </span></span><span>σ/√n</span>)

</span><span>θ0</span> is the measured statistic, <span>Z<span>α/2</span></span> is the cutoff/critical value, and <span>σ/<span>√n</span></span> is the standard error. σ is the population standard deviation (if known) or can be estimated by a sample standard deviation. n is the sample size. The cutoff value depends on the test you wish to use, and <span>θ0</span><span> depends on the statistic you wish to estimate.</span>
You might be interested in
9. What is the vertex of the function? f(x) = 3x² - 8x + 10​
Delvig [45]

Answer:

The vertex of the function is (1.333, 4.667)

Step-by-step explanation:

1. Calculate -b / 2a. This is the x-coordinate of the vertex.

2. simply plug -b / 2a into the equation for x and solve for y.

Y = 3x^{2}  - 8x + 10\\Compare with the form of   y = ax^{2} + bx + c\\So that means a = 3, b = -8, and c = 10.

Calculate -b/2a:

X = -(-8)/2(3)

X = 8/6

This is equal to 1.33 recurring

Plug 8/6 for x and solve for y:

Y = 3x^{2} - 8x + 10

Y = 3(\frac{8}{6})^{2} - 8(\frac{8}{6}) + 10

Y = \frac{48}{9} - \frac{64}{6} + 10\\

This is equal to 4.66 reccuring.

7 0
1 year ago
A baskets contains 34 heads of lettuce, 5 of which are spoiled. If a sample of 2 is drawn and not replaced, what is the probabil
lara31 [8.8K]
2 out of 34th of a chance
7 0
2 years ago
What is the gcf of 12 18 26
navik [9.2K]

the greatest common factor is 2

5 0
3 years ago
Read 2 more answers
Plsss help will give a good amount of points, need done asap
Alex
4+2i because you can’t have a negative square root
7 0
3 years ago
Read 2 more answers
The number part when a number and a variable are multiplied together in a term is called the _____.
77julia77 [94]

Answer:

Coefficient

Step-by-step explanation:

-Usually a combination of variables and constants are multiplied to get a product.

-The constant or number part in the multiplication process is called the Coefficient

7 0
2 years ago
Other questions:
  • The volume of one of the Great Lakes is 3.5 × 10E3 cubic kilometers.
    9·1 answer
  • The area of a rectangle hexagon can be found by breaking the hexagon into six congruent triangles and then taking the sum of the
    10·1 answer
  • The city of Austin has a bridge that is famous for housing the largest urban bat colony in the world. It is home to 1.5 million
    9·1 answer
  • Please help me with 5-13 please in expanded form please!!
    7·1 answer
  • Please help What is the value of x show work
    11·1 answer
  • For estimation purposes, the shape formed by the sectors is considered to be a parallelogram. Which statement is true?
    6·2 answers
  • The graph represents the height of a ball after being thrown versus time. Which statement is true?
    13·1 answer
  • How do I solve this and do the explanation of it
    11·1 answer
  • How many expressions can you find using and that have a value of 12 a=6 b=4 c=-2
    14·1 answer
  • Interpreting Points on Graphs of Proportional Relationships
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!