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agasfer [191]
2 years ago
15

If a school wants student opinion on the course registration process, would a systematic sample polling every tenth student to r

egister, a stratified sample polling five students in each academic discipline, or a random sample polling any fifty students be most effective? Why?
Mathematics
1 answer:
777dan777 [17]2 years ago
8 0

Answer:

Stratified random sampling is based on a subdivision of the sample framework into strata with the help of an observable variable that separates them. After forming the strata, each individual is located in one and only one stratum. The sample is established by selecting a certain number of individuals in each stratum, guaranteeing a contribution of each stratum in the information obtained.

The best sampling method, in this case, is Stratified Random.

Step-by-step explanation:

You might be interested in
Factor tree<br>67344 using prime numbers​
Aleksandr-060686 [28]

Answer:

2^4*3*23*61

Step-by-step explanation:

\begin{array}{c|c}67344&2\\33672&2\\16836&2\\8418&2\\4209&3\\1403&23\\61&61\\1&\\\end{array}

8 0
3 years ago
An NBC News/Wall Street Journal poll conducted in 2010 predicted that 61% of Americans did not support the Tea Party movement. I
fomenos

Answer:

The right answer is:

The poll provides strong evidence that more than 61% of Americans oppose the Tea Party movement this year. Why? The P-value (0.026) is less than the significance level of 5%.

Step-by-step explanation:

At a level of significance of 5%, a P-value of 0.026 (2.6%) means that the difference is significant and the null hypothesis is rejected.

The difference between the proportions is significant, what means that more than 61% of Americans oppose the Tea Party movement this year.

Note: The difference in the sample proportions (3%) is not enough to claim that the difference is significant.

The right answer is:

The poll provides strong evidence that more than 61% of Americans oppose the Tea Party movement this year. Why? The P-value (0.026) is less than the significance level of 5%.

5 0
3 years ago
(y x 1) + 2 and y + 2, is it equivalent or non equivalent?
enot [183]

Given:

The two expressions are

(y\times 1)+2

y+2

To find:

Whether the given expression are equivalent or non-equivalent.

Solution:

If two expressions are looking different but they are equal after simplification, then they are called equivalent expressions.

The first expression is

(y\times 1)+2=y+2

The first expression is equal to the second expression after the simplification.

Therefore, the given expressions are equivalent.

5 0
3 years ago
Use one or more properties to rewrite the expression as an equivalent expression that does not use parenthesis. (5+10p)+13. A. 2
bulgar [2K]
It will be D. because you have to add the like terms which is 13 + 5 which will be 18 and so 10p doesn't have no like terms it just stays the same so it will be 10p+18
7 0
3 years ago
Consider the situation where 12 people at a picnic want to select an activity for the afternoon. Which activity would win a plur
tatyana61 [14]
Answer is soccer because it has more numbers in the picture
4 0
2 years ago
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