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
Neporo4naja [7]
4 years ago
6

For which situations is it appropriate to use a sample? Choose all that apply.

Mathematics
1 answer:
uranmaximum [27]4 years ago
8 0

Answer:

What percentage of pick-up truck drivers want their next vehicle purchase to be another pick-up truck?

Should the speed limit be decreased on the highway connecting two large cities?

How many pedestrians would use a walkway built over a busy road?

Step-by-step explanation:

We use samples when using an entire population is not feasible.

It is not reasonable to ask every pick-up truck driver what they want their next purchase to be; there are too many owners of pick-up trucks.  This means we should use a sample.

Many people drive a highway that connects two large cities.  It is not reasonable to survey every person that drives it, so we should use a sample.

On a busy road, we may have many pedestrians; this means we should use a sample instead of the entire population.

You might be interested in
An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such tha
amid [387]

Answer:

Given:

mean, u = 6.2

sample size, n = 180

Sample mean, X' = 6.3

s.d \sigma = 0.9

Significance level = 0.05

The null and alternative hypothesis will be:

H0 : u = 6.2

H1 : u > 6.2

Degree of freedom = 180 - 1 = 179

Using t table, the t critical value,

t> t(0.05, 179) = 1.6534

The test statistic:

t = \frac{X' - u}{\frac{\sigma}{\sqrt{n}}}

T = \frac{6.3 - 6.2}{\frac{0.9}{\sqrt{180}}} = 1.4907

Since the test statistic(t calculated value) 1.4907 < t critical value (1.6534), we fail to reject the null hypothesis H0.

4 0
3 years ago
What percent of 70 is 15?
alex41 [277]

21.4285 just divide 15 by 70

3 0
4 years ago
Math question!!! PLEASE HELP
Iteru [2.4K]
The answer is a because I looked it up

8 0
3 years ago
Mrs. Jones bought three 2-kilogram packages of flour. How many grams of flour did she buy?
Makovka662 [10]

It is given that, Mrs. Jones bought three 2-kilogram packages of flour.

And

1 kilogram = 1000 grams

And three 2 -kilogram packages means she bought 6 kilogram flour .

So we need to convert 6 kilogram flour into grams.

If,

1 kilogram = 1000grams, \\ than, \\ 6 kilograms = 6*1000=6000 grams

So she bought 6000 grams of flour .

5 0
4 years ago
Read 2 more answers
What is the unit rate for this?<br> Time: 1, 2, 3, 4 <br> Amount: 0.6, 1.2, 1.8, 2.4
Debora [2.8K]

Answer:

1:0.6

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • 73210 the digit 3 stands
    15·2 answers
  • (-23+6i)+(-2+8i)<br><br> Add subtract and multiply complex numbers
    7·2 answers
  • What is the lenght of the hypotenuse 12mi 5mi c=​
    9·1 answer
  • I need 5 divisions with decimals
    10·2 answers
  • Put the equation in standard form with a positive X coefficient y + 3 = 3(x+5) ​
    9·2 answers
  • Solve for x <br> 4 3/10-(2 2/5x+5 1/2)=1/2(-3 3/5x+1 1/5)
    5·1 answer
  • Hi plz help, if you can ill mark you 5 starz! :)
    8·1 answer
  • It is computed that when a basketball player shoots a free throw the odds in favor of his making our 23 to 3 find the probabilit
    13·1 answer
  • H(8) = -2(8)^2 + 4(8)- 7
    11·1 answer
  • Reflect the point (a) a-axis, and (b) in the y-axis (-4,-1)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!