answer.
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
Sergeeva-Olga
1 month ago
13

A follow-up study will be conducted with a sample of 20 people from the 300 people who responded yes (support) and no (do not su

pport). Two sampling methods have been proposed: a simple random sample and a stratified random sample with the survey response as strata. If the stratified random sample is used, what is the number of people that will be selected from those who responded yes? Justify your answer
Mathematics
1 answer:
PIT_PIT [12.4K]1 month ago
4 0

Response:

Detailed explanation:

Hello!

Stratified sampling involves the categorization of the population into subgroups based on pre-established criteria for the study. These subgroups consist of homogeneous units concerning the relevant characteristics. In this instance, individuals in the groups will represent only one of the two potential opinions (support or not support) and not both.

The researcher determines the sample size desired, considering several factors such as finances, material availability, and accessibility to experimental subjects (for instance, if they are endangered species, larger sample sizes may not be feasible).

One might conduct proportionate stratified sampling by selecting a proportion of respondents who answered "yes" along with those who answered "no."

In this sampling method, taking a specific proportion from each subgroup allows for a more straightforward extrapolation of results to the overall populations. For example, if you needed a sample size of n = 20, each stratum would ideally contain half, meaning 10 from the “yes” group and 10 from the “no” group.

I hope this is helpful!

You might be interested in
Kayla says that the point labeled C in the diagram below is the center. Raymond says that point C is the radius. A sphere. The c
Leona [12618]

Answer:

Kayla is right; the center constitutes a fixed point located at the sphere's core.

Step-by-step explanation:

Kayla is indeed correct, whereas Raymond is mistaken since a point itself cannot represent a radius; a radius is defined as the line segment stretching from the center to the surface.

The center is indeed the stable point positioned at the center of the sphere.

6 0
17 days ago
Read 2 more answers
Danielle sells beauty supplies and earns a base salary of $450 per week plus a 9% commission on sales. During one particular wee
babunello [11817]

Hello Angela, after that we will be able to proceed to payment during checkout, and the other aspect is

5 0
22 days ago
Makayla is taking a math course and is working with the perimeter of rectangles. She knows the perimeter and length of her recta
lawyer [12517]

Answer:

  W=\dfrac{P}{2}-L

Step-by-step explanation:

  P=2L+2W \qquad\text{given}\\\\P-2L=2W \qquad\text{subtract $2L$}\\\\\dfrac{P-2L}{2}=W \qquad\text{divide by 2}\\\\W=\dfrac{P}{2}-L \qquad\text{carry out the division}

The given formula doesn't appear to match any of the answer choices.

  W = (P/2) - L

5 0
21 day ago
Members of a school club are buying matching shirts. They know at least 25 members will get a shirt. Long-sleeved shirts are $10
babunello [11817]

Answer:

The highest number of long-sleeved shirts that can be ordered is 8

and

The lowest number of long-sleeved shirts that can be acquired is 0

Step-by-step breakdown:

Let y denote the quantity of short sleeves and x indicate the quantity of long sleeves.

According to the stipulated conditions:

Members of a school club are purchasing coordinating shirts. They understand that a minimum of 25 members will opt for a shirt.

therefore, we have;

x+y\geq 25               or

y\geq 25 -x....[1]

Given that long-sleeved shirts are priced at $10 each and short-sleeved shirts at $5 each.

Thus;

The total expense for long sleeves amounts to 10x and

the total cost of short sleeves is 5y

Moreover; the club has a budget that does not exceed $165

therefore;

10x+5y\leq 165 

 5y\leq 165 -10x or

y\leq 33-2x......[2]

By plotting the inequality functions:

Graphing equations [1] and [2] produces a maximum at the coordinates (8, 17)

thus, x= 8.

Taking the minimum value of x =0 results in y falling between 25 and 33.

consequently, the solution space is situated between the intersecting lines to the left.

In conclusion, a maximum of 8 long-sleeved shirts can be obtained, while the minimum number of long-sleeved shirts that can be bought is 0






6 0
1 month ago
Read 2 more answers
A college runner set a school record of 3:59.37 in the mile run. assuming that the distance was measured accurately to five sign
AnnZ [12381]
Given a time of 3:59.37 for a mile run, this translates to 3 hours and 59.37 minutes. To convert this entirely into hours: 3 hours + 59.37 minutes (1 hour / 60 minutes) = 3.9895 hours. Thus, the average speed can be calculated as: average speed = 1 mile * (1.61 km / mile) / 3.9895 hours. Consequently, the average speed equals 0.4 km / hour.
5 0
14 days ago
Other questions:
  • El perímetro de un rectángulo es 28cm, uno de los lados es 6cm más que el otro lado. Hallar el mayor lado del rectángulo.
    15·1 answer
  • Which graph matches the equation y+6=3/4(x+4)​
    5·2 answers
  • Devon wants to write an equation for a line that passes through 2 of the data points he has collected. The points are (8, 5) and
    6·2 answers
  • A line segment has endpoints at (–1, 4) and (4, 1). Which reflection will produce an image with endpoints at (–4, 1) and (–1, –4
    6·2 answers
  • You earned $62,715 this year and your Income tax calculator says you owe $8,818 in taxes. But you neglected to deduct $1,000 for
    6·1 answer
  • There are 7 yellow, 5 green, and 3 blue party hats in a bag. you randomly choose a yellow party hat and put it on. then your fri
    11·1 answer
  • .580 80 repeating as fraction
    5·2 answers
  • Which expression is equivalent to (3m^-2n)^-3/6mn^-2? Assume m=0, n=0.
    15·2 answers
  • June starts out hiking due south and travels 4.50 km. When she comes to a canyon running east to west, she turns due east and tr
    8·1 answer
  • If a geometric sequence has a1 = 256 and a8 = 512, find the exact value of the common ratio ????.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!