Stats_Proportion Intervals

Stats_Proportion Intervals

Feb 2

Multiple Choice

What is the sample total?

• $n=1000$

• $n=55$

• $n=95\%$

• $n=0.95$

Open Ended

Write out the population parameter (p)

p = ...

Multiple Choice

Choose the correct sample statistic.

• $\overline{p}=0.55$

• $\overline{p}=\frac{55}{1000}=0.055$

• $\overline{p}=0.95$

Multiple Choice

Which is the correct way to check random?

• Check random: shook the kids

• Check random: nationwide survey

• Check random: randomly sampled

Multiple Choice

Which is the correct way to check independent?

• Check independent:
  

  $1000<10\%\left(all\ nationwide\ kids\right)$

• Check independent:

  
  $55<10\%\left(all\ nationwide\ kids\right)$
  

Multiple Select

Which is the correct way to check normal?

(select 2)

• Check normal:
  

   $1000\left(.055\right)=55\ge10$ 

• Check normal:

  
   $1000\left(1-.055\right)=945\ge10$ 
  

• Check normal:
   $1000\ge25$  
  

Open Ended

State the appropriate name for this formula procedure.

Multiple Choice

Which is the appropriate setup for your confidence interval?

• $0.055\pm1.645\cdot\sqrt{\frac{0.055\left(1-0.055\right)}{1000}}$

• $0.055\pm1.960\cdot\sqrt{\frac{0.055\left(1-0.055\right)}{1000}}$

• $0.055\pm2.576\cdot\sqrt{\frac{0.055\left(1-0.055\right)}{1000}}$

Multiple Choice

Desmos was used to find the subtraction and addition of the interval. Which would be the correct way to write it?

• 
  

  $\left(0.040,0.069\right)$
  

• $\left(0.069,0.040\right)$

Open Ended

When the interval is computed, you get the values

 $\left(0.040,0.069\right)$  
Write out the decision in a complete sentence.

Poll

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