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
elena-s [515]
3 years ago
9

A music industry researcher wants to estimate, with a 90% confidence level, the proportion of young urban people (ages 21 to 35

years) who go to at least 3 concerts a year. Previous studies show that 21% of those people (21 to 35 year olds) interviewed go to at least 3 concerts a year. The researcher wants to be accurate within 1% of the true proportion. Find the minimum sample size necessary.
Mathematics
1 answer:
katrin2010 [14]3 years ago
5 0

Answer:

21378

Step-by-step explanation:

The confidence level is 90%, which gives us a Z of 1.645.

Our equation is (Z^2*p*q)/e^2

(1.645^2*p*(1-.21))/ (.01^2)

E is the error proportion, .01

Q is 1-p or the proportion

P is the pop you need

With this, we can solve

and get p = 21377.5975 and rounded to 21378

You might be interested in
The equation y=−15x+12 is the slope-intercept form of which equation?
Sliva [168]

I honestly don't know but I think it would come out to be 4/5

6 0
2 years ago
Perform the indicated operation. 15/7 x 3/8
Alla [95]
  You just multiply the numerators of the fractions and the denominators of the fractions together, and then reduce the fraction to simplify it from that point on.
4 0
3 years ago
Read 2 more answers
In cele două săptămâni cât a stat la bunici, Adrian a citit o carte de povești. Ştiind că în prima
polet [3.4K]

Answer:

ogy the most important single family homes in the underground parking lot of the squirrel the dictionary mean of where suggest a set time because of the homeware the

6 0
3 years ago
Read 2 more answers
F(x) = –3x² - 6x +1<br><br> Find f(8)
MAXImum [283]

Answer:

-239

Step-by-step explanation:

6 0
3 years ago
What is an explicit formula for the geometric sequence 64,16,4,1,... where the first term
olya-2409 [2.1K]

Answer:

A

Step-by-step explanation:

The explicit formula for a geometric sequence is

f(n) = f(1) (r)^{n-1}

where f(1) is the first term and r the common ratio

Here f(1) = 64 and r = \frac{f(2)}{f(1)} = \frac{16}{64} = \frac{1}{4} , then

f(n) = 64 (\frac{1}{4}) ^{n-1} → A

7 0
2 years ago
Other questions:
  • 7. Find the value of x in the figure below.<br> (8x + 5)<br> (13x - 14)<br> A. 7<br> D. 10
    15·1 answer
  • Find the height,h, of the triangle​
    7·1 answer
  • For the function f(x)=5x, which ordered pair will be a point on the graph of the function?
    7·1 answer
  • 20. Each student read 41 pages in December
    6·2 answers
  • Find two consecutive positive integers such that the sum of their squares is 145
    7·1 answer
  • Match each equation to the situation it represents. Situation Equation An adult and 5 55 children rent skates. It costs $ 4 $4do
    12·1 answer
  • Which of the following is a TRUE statement about the triangle below?
    12·1 answer
  • Twelve less than the cube of the sum of six times a number and three.
    12·1 answer
  • . Bryon competes on the school debate team. He won 0.40 of the debates in which he participated. Which statement is not true abo
    5·1 answer
  • PLEASE HELP MEEEE!!!<br>What is 600cu cm if that volume is scaled down by 1/10
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!