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nlexa [21]
3 years ago
15

Suppose that a Coke/Pepsi survey was conducted of 40 randomly selected individuals from Gainesville. Thirty people selected Coke

. Which of the following statements correctly describes how the confidence interval for the population proportion of people that prefer Coke should be computed?
a. There are not 15 successes and 15 failures. A confidence interval can not be done.
b. There are not 15 successes and 15 failures. A confidence interval can be computed by adding 2 successes and 2 failures.
c. There are not 15 successes and 15 failures. A confidence interval can be computed by adding 4 successes and 5 failures.
d. There are at least 15 successes and 15 failures. A large sample confidence interval for the population proportion can be computed with no additional value.
Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
4 0

Answer:yo

Step-by-step explanation:yo

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At a local health club, a researcher samples 75 people whose primary exercise is cardiovascular and 75 people whose primary exer
ivolga24 [154]

Answer:

A

Step-by-step explanation:

Basically, this is an observational study because the researcher does not apply any treatment.

It's not an experiment because there is no experimentation involved. :)

It's not double-blind because in that case the researcher would have to apply something to two kinds of groups. one aware one the other not. not the case.

It's not D because  The observations are comparing two kinds of subjects and they are not looking for a cause and effect.

8 0
3 years ago
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Drag a figure into each blank space so that the two figures in the row match the description.
LekaFEV [45]

Answer:

i) not similar but corresponding angles have equal measures.

  the blue object required to be dragged to the box is the fourth object which is a square. A square will not have proportional lengths and is not similar to the given figure but the corresponding angles will have equal measures.

ii) not similar but side lengths are proportional.

the blue object required to be dragged to the box is the first object which is a parallelogram. A parallelogram will have proportional lengths and is not similar to the given figure because the corresponding angles do not have equal measures.

Step-by-step explanation:

i) not similar but corresponding angles have equal measures.

  the blue object required to be dragged to the box is the fourth object which is a square. A square will not have proportional lengths and is not similar to the given figure but the corresponding angles will have equal measures.

ii) not similar but side lengths are proportional.

the blue object required to be dragged to the box is the first object which is a parallelogram. A parallelogram will have proportional lengths and is not similar to the given figure because the corresponding angles do not have equal measures.

5 0
3 years ago
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A truck has a mass of 56,000 kg and a velocity of 20 m/s. What is the truck’s momentum?
konstantin123 [22]
The answer is 12 to the question
Hopes this helps you with your question!!
4 0
3 years ago
At the end of 8 years, Anna paid $400 interest for a loan. If the simple annual interest rate was 4%, how much did Anna borrow?
Valentin [98]

Answer:

$1,250

Step-by-step explanation:

You can find the answer using the following formula:

i = Prn

i= interest= $400

P= principal

r= rate of interest=0.04

t= time periods= 8

You can replace the values you have in the formula and then, isolate P:

400= P*0.04*8

400=P*0.32

P= 400/0.32

P= 1250

According to this, the answer is that Anna borrowed $1,250.

4 0
3 years ago
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Gina can run 21 laps in 7 minutes.what is her average running rate in laps per minute
ivann1987 [24]
Average running time = \frac{laps  run}{time  taken}
                                   = \frac{21  laps}{7  mins}
                                   = 3 laps / min 
5 0
3 years ago
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