A+ Answers of the following Questions

1. _____ the distribution of sample means approaches a/an _____ distribution. The choices are 
1) decreases, uniform

2) increases, normal

3) decreases, normal

4) increases, normal

5) increases, exponential,
  

2. When the level of confidence and sample proportion remain the same, a confidence interval for a population proportion p based on a sample of n = 100 will be _______a confidence interval for p based on a sample of ne = 400.

1) wider

2) narrower than

3) equal to.

 
3. The table below presents Kent’s marginal utility per dollar for books and pizzas. Books cost $16 each and pizzas cost $8 each. 
Books MU/P Pizzas MU/P
1 30 1 25
2 26 2 24.5
3 24.5 3 20
4 20 4 16
5 17.5 5 11
6 10 6 8
7 5.5 7 2
a. How many books and pizzas will Kent purchase if he has $88 to spend?
b. How much utility will Kent receive from his purchases in a? 
c. The price of books rises to $20 a book. How do your answers to a and b change?

Question:

Should we try to reduce our dependence on crude oil and stay away from the Gulf Region? 
Or 
Should we continue to play an international role to ensure our energy security, with military action and war if necessary? 

Question 1
A magnetic field is produced by moving electrons, which carry an electric 
Choose one answer.
a. proton.
b. charge.
c. circuit.
d. resistance.

Question 2
The magnetic field lines near a straight, current-carrying wire are in the shape of _____.

Question 3
An example of a common ferromagnetic material is 
Choose one answer.
a. plastic.
b. hydrogen.
c. nickel.
d. copper.

Question 1
An atom can act as a tiny magnet due to the spinning and orbiting motion of negatively charged particles called _____.

Question 2
The region around a magnet where the magnetic force is exerted is known as its 
Choose one answer.
a. magnetic pole.
b. lodestone.
c. magnetic field.
d. magnetic domain.

Question 3
An example of an insulator is 
Choose one answer.
a. rubber.
b. copper.
c. silver.
d. iron.

Question 1
What happens if you break a magnet in half? 

a. One half will have a north pole only and one half will have a south pole only.
b. Neither half will have a pole.
c. Each half will be a new magnet, with both a north and south pole.
d. Neither half will be able to attract or repel.

Question 2
Every magnet, regardless of its shape, has two 

a. magnetic poles.
b. magnetic charges.
c. magnetic fields.
d. magnetic domains.

Question 3
The magnetic domains are two regions of space above Earth’s surface that contain electrons and protons traveling at high speeds.
True

False