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
iren2701 [21]
4 years ago
8

Determine whether the following statement is true or false. Explain. When obtaining a stratified​ sample, the number of individu

als included within each stratum must be equal. Choose the correct answer below. A. False. A stratified sample is constructed by successively selecting a stratum at random and then selecting a random individual from within that stratum. With this​ process, it is unlikely that all strata will be sampled from the same number of times. B. False. Within stratified​ samples, the number of individuals sampled from each stratum should be proportional to the size of the strata in the population. C. True. Sampling the same number of people from each stratum will result in a sample that is representative of the population at a lower cost than a simple random sample. D. False. When taking a stratified​ sample, a simple random sample is drawn from one stratum at random. All other strata will not be included in the sample.
Mathematics
1 answer:
bearhunter [10]4 years ago
4 0

Answer:

B. False. Within stratified​ samples, the number of individuals sampled from each stratum should be proportional to the size of the strata in the population.

Step-by-step explanation:

In a stratified sample, each stratum should be proportional to that category of the population.  This means that each stratum would potentially have a different number of elements in it.

You might be interested in
Can I get help with this question?
juin [17]

Answer:

h well jskkkskwlejsjnekekwpwkqiwjeuehwiwnwoqmwlkwkwke just trying to get pinots. sorry

7 0
3 years ago
Read 2 more answers
10# A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like
ella [17]

ANSWER:

104

STEP-BY-STEP EXPLANATION:

Given:

Standard deviation (σ) = 700

Confidence level = 95%

Mean error (Eμ) = 135

We have for a confidence level of 95%:

\begin{gathered} \alpha=100\%-95\%=5\%=0.05 \\  \\ \alpha\text{/2}=\frac{0.05}{2}=0.025 \\  \\ \text{ The corresponding Z value for \alpha/2 = 0.025 is as follows:} \\  \\ Z_{\alpha\text{/2}}=1.96 \end{gathered}

Now, we calculate the minimum value of the sample size as follows:

\begin{gathered} n=\left(\frac{Z_{\alpha\text{/2}}\cdot\sigma}{E}\right)^2 \\  \\ \text{ We replacing:} \\  \\ \:n=\left(\frac{1.96\cdot 700}{135}\right)^2 \\  \\ \:n=103.2858\cong104 \end{gathered}

The minimum sample size needed is 104

3 0
1 year ago
There are 12 students in the gym class. If 4 students can sit on 1 bench, how
Rainbow [258]

Answer:

3 benches

Step-by-step explanation:

GIven:

4 students ----> 1 bench

1 student ------> 1/4 bench

12 students -----> (1/4) x 12 = 3 benches

5 0
3 years ago
Read 2 more answers
The coordinates of a rectangle are (3,0), (3,-5), (-4,0) and (-4,-5)
Nadya [2.5K]

Answer:

a. 7 units

b. 5 units

c. 24 units

d. 35 units

8 0
3 years ago
Which capital letter appears to have parallel line segments
lawyer [7]
The capital letter H since the two lines opposite are parallel
8 0
3 years ago
Other questions:
  • Can someone please help it’s due tomorrow please help I will give you points i need help on #5 and #8 please help
    11·1 answer
  • What is the opposite of 6 on the number line
    10·1 answer
  • Which of the following patterns or images could best be described by a translation?
    15·1 answer
  • I'm not good at math I how wild I work it out
    15·1 answer
  • Given f(x) = x^2 – 3 and g(x) = x+2/x . Find (g ° f)(4).
    9·1 answer
  • Solve this system for m and b 342=23m+b 147=10m+b
    15·2 answers
  • ❗️❗️EASY 10 points HELP ME ❗️❗️There
    6·1 answer
  • Look at the graph below: First line joins ordered pairs negative 4, 3 and 2, negative 3. Second line joins negative 4, negative
    7·2 answers
  • In 1990, the population of Math Valley was 15,000. If the population is increasing at an annual rate of 2.4%, what was the popul
    5·1 answer
  • Help please can someone solve this<br>a = 165/360 × pi10^2​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!