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
BaLLatris [955]
3 years ago
8

The kingston review (kr) is testing a new gmat question. the kr wants to determine what proportion of test-takers will answer th

e question correctly, in order to assess its difficulty. in a random sample of 144 test-takers, 75% answered the question correctly. what is the 95% confidence interval for the proportion of test-takers answering the question correctly?
Mathematics
1 answer:
oksian1 [2.3K]3 years ago
7 0
[67.9 %, 82.1 %] is the 95% confidence interval for the proportion of test-takers answering the question correctly. So we have [67.9 %, 82.1 %] In a random sample of 144 test-takers with 75% answered the question correctly. So the answer in this question is [67.9 %, 82.1 %].
You might be interested in
Graph the line that represents this equation: 25 PTS
Softa [21]

Answer:

y=1/2x.

Step-by-step explanation:

First, you would like to distrubte the fraction to make it become: 1/2x+1 on the right side. Second you would like to put it in y=mx+b form. Isolate y to y=1/2x. Then, you can start on (0,0), the orgin and they go up 1 and over 2 right.

7 0
3 years ago
Please help me with this question!?
ANEK [815]

Answer:

V = 93.675

Step-by-step explanation:

3 0
3 years ago
The polynomial -2x^2+500x represents the budget surplus of the town of alphaville. Betaville's surplus is represented by x^2-100
lozanna [386]

Answer:

The answer to your question is:   Total surplus = - x² + 400 x + 10,000

Step-by-step explanation:

Data

Alphaville       - 2x² + 500 x

Betaville         x² - 100 x + 10,000

Surplus of both towns = ?

Process

Add the surplus of both towns

Total surplus = Alphaville surplus + Betaville surplus

Total surplus =   - 2x² + 500 x +  x² - 100 x + 10,000

Total surplus = - x² + 400 x + 10,000

8 0
3 years ago
Please Help It is for my hw
Sedaia [141]

Answer:

step 1: distribute -1

step 2: combine like terms

step 3: subtract 4 on both sides

step 4: divided both sides by -8, so u can isolate M alone

M=-2

Step-by-step explanation:

4 0
3 years ago
Simplify and express in exponential form: 8^-1 * 3^3/ 2^-4 * 9^-2
Yuri [45]

Answer:

2^1* 3^7

Step-by-step explanation:

8^-1 * 3^3/ 2^-4 * 9^-2

Negative exponents move from the numerator to the denominator or from the denominator to the numerator

2^4*9^2* 3^3 /8^1  

Rewriting 9^2 as 3^2^2 = 3^4  and 8 = 2^3

2^4 * 3^3 * 3^4 / 2^3

2^4/ 2^3 = 2   and 3^3 * 3^4 = 3^(3+4) = 3^7

2* 3^7

5 0
3 years ago
Read 2 more answers
Other questions:
  • If 2x+1=5, then r=2.
    12·1 answer
  • Can someone explain how to do this
    15·1 answer
  • What is the difference between 379.5 and 405.87?
    9·2 answers
  • There are a total sales of 2,000 dollars on Monday on Tuesday sales dropped 10% on Wednesday sales dropped another 20% compared
    7·1 answer
  • NEED HELP NOW 100 POINTS!!!!!
    13·2 answers
  • What is the equivalent to 28/42
    9·1 answer
  • 2+2+3+4+5+6+7+8+9+10+11=?
    15·1 answer
  • Number 3 and 4 please ASAP
    5·1 answer
  • I AM FAILING PLZ HELP ME ASAP A rectangular prism and its dimensions are shown in the diagram.
    5·2 answers
  • Need this asap! What is the denominator of the next term in the geometric sequence?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!