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
Elanso [62]
3 years ago
14

2. Discuss how you might select a random sample to estimate the population mean rating of all 100 computer games.

Mathematics
1 answer:
Vlada [557]3 years ago
4 0

Answer:

n = \frac{NZ^{2}_{1-\alpha/2}\sigma^{2}}{E^{2}(N-1)+Z^{2}_{1-\alpha/2}\sigma^{2}}

Step-by-step explanation:

For calculating how large is a sample size that is large enough for estimating the population mean, we should consider the error that we are ready to agree, because the sample size depends on this error.

If your error is α, the sample size would be:

n = \frac{NZ^{2}_{1-\alpha/2}\sigma^{2}}{E^{2}(N-1)+Z^{2}_{1-\alpha/2}\sigma^{2}}

Where N: the population size, in your case N = 100

            δ: the standar deviation

            Z:  the value associated to the error in the standard normal table

            E: error

You might be interested in
Line ab perpendicular to line MN how many right angles are formed where the two meet
iren [92.7K]
Just think about it
right angles are the very definition of perpendicular
how many right angles in a full rotation? 4

answer is 4
4 0
3 years ago
Debbie has at most $60 to spend on a clothes she wants to buy a pair of jeans for $22 and spend the rest on t-shirts each t-shir
patriot [66]

The inequality to find the maximum number of t-shirts is:

22+8x\leq 60

Step-by-step explanation:

Debbie has at most $60 to spend

Then it will be <=60

Now she has to spend 22 dollars on jeans so 22 will be add to the initial amount for sure.

And

Let x be the number of t-shirts

Then the cost of x t-shirts will be 8x

Putting this in to inequality will be:

22+8x\leq 60

The inequality to find the maximum number of t-shirts is:

22+8x\leq 60

Keywords: Inequality

Learn more about inequalities at:

  • brainly.com/question/763150
  • brainly.com/question/750742

#LearnwithBrainly

7 0
3 years ago
I need help solving this
weeeeeb [17]

i y vino the answer is 60° i hope so

8 0
3 years ago
How do you simplify 16m^2/24m^7
denpristay [2]

Answer: 2/3m^5

Step-by-step explanation: 1st Reduce the expression by cancelling the common factors.

6 0
3 years ago
PLEASE HELP :'))
andreev551 [17]

Answer:

D) 54 cm

Step-by-step explanation:

We can use the Centroid Theorem to solve this problem, which states that the centroid of a triangle is \frac{2}{3} of the distance from each of the triangle's vertices to the midpoint of the opposite side.

Therefore, R is \frac{2}{3} of the distance from U to V, since the latter is the midpoint of the side opposite to U. We know this because R belongs to UV, so R must be QS's midpoint due to the fact that by definition, the centroid of a triangle is the intersection of a triangle's three medians (segments which connect a vertex of a triangle to the midpoint of the side opposite to it).

We can then write the following equation:

VR=\frac{1}{3} UV

Substituting VR = 18 into the equation gives us:

18=\frac{1}{3} UV

Solving for UV, we get:

18=\frac{1}{3} UV

3 *18=3*\frac{1}{3}UV (Multiply both sides of the equation by 3 to get rid of UV's coefficient)

54=UV (Simplify)

UV=54 (Symmetric Property of Equality)

Therefore, the answer is D. Hope this helps!

7 0
3 years ago
Other questions:
  • What is the root of the polynomial equation x(x-2)(x+3)=18 ? Use a graphing calculator and a system of equations.
    9·2 answers
  • Is it possible to write a radical without using the radical symbol
    11·2 answers
  • If light travels 6.71x10^8 miles in one hour. how many miles will it travel in 1 minute?
    11·1 answer
  • What is the angle supplementary to the angle measuring 165°12′?
    11·2 answers
  • 25PTS!!!! PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!!
    8·2 answers
  • Catherine's mother is
    13·1 answer
  • It takes 7/12 foot of ribbon to make a bookmark. How many feet of ribbon will it take to make 15 bookmarks?
    14·1 answer
  • If 2x-7 is 5 more than x+4, what is the value of 3x+5
    5·1 answer
  • Which statement is true regarding Table G and Table H?
    13·1 answer
  • What is the value of x in the equation?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!