It appears that over the past 50 years, the number of farms in the United States declined while the average size of farms increased. The following data provided by the U.S. Department of Agriculture show five-year interval data for U.S. farms. Use these data to develop the equation of a regression line to predict the average size of a farm (y) by the number of farms (x). Discuss the slope and y-intercept of the model.

(Do not round the intermediate values. Round your answers to 2 decimal places.)

y^=   +(   )x

Regression and Correlation

1. What are the the values for "a" and "b"?

2. Pearson's correlation Coefficient value r ?

implement the following logic in Python, use appropriate data types. Data types are represented as either numeric (num) or string.

string name

string address

num item

num quantity

num price

num SIZE = 6

num VALID_ITEM [SIZE] = 106, 108, 307, 405, 457, 688

num VALID_ITEM_PRICE [SIZE] = 0.59, 0.99, 4.50, 15.99, 17.50, 39.00

num sub

string foundIt = “N”

string MSG_YES = “Item available”

string MSG_NO = “Item not found”

get name, address, item, quantity

sub = 0

while sub <= SIZE

if item == VALID_ITEM [sub] then

foundIt = “Y”

price = VALID_ITEM_PRICE [sub]

endif

sub = sub + 1

endwhile

if foundIt == “Y” then

print MSG_YES

print quantity, “ at “ , price, “ each”

print “Total “, quantity * price

else

print MSG_NO

endif

IN PYTHON

Provide a total of two examples of the interaction between human rights and HIV. Provide one example relating a violation of human rights, such as discrimination, affecting people living with HIV. Provide one example explaining how HIV public health programs or HIV health policy impact human rights.

In your examples, please explain not only the impact, but the mechanism of the impact. For instance, how do human rights violations impact health? What are the effects of the human rights violations? (These questions are meant to prompt you to develop an explanation beyond a statement that human rights affect health.)

1) How are phenol red broth test, urea test and lipase test connected to one another?

a) they use the same enzyme                         b)they have the same products

c) they use the same indicator                      d) they have the same color of a positive result

2) I am a microorganism that causes skin infections. Yes, I can live at higher salt concentration almost like the perfect Staphylococcus aureus, but due to the nature of my ecological niche, I also must be able to digest .................

When I digest that important chemical substance, I will turn the indicator in the test, which is called

Lipid hydrolysis yellow.

3) I am an inhibitor of an enzyme that plays an important role in the Krebs cycle. I am a part of a specialized microbiological test that uses bromthymol blue as an indicator and generates blue color as positive test result.

My name is Malonate Test

the name of the substance that I am a structural analog of is called succinate

the name of the enzyme that I bother to be an inhibitor of is succinate dehydrogenase

4) The name of the other microbiological test that uses the same indicator as the indicator used in the test named after me is Pyruvate dehydrogenase test/pyruvate carboxylase test/kreb’s cycle/indicator as succinate dehydrogenase

And an organism positive for the production of casease is capable for digesting:

a) lipids   b) carbohydrates   c) DNA   d) casein

Case Study Organophosphate Poisoning

John has a number of prize apple trees in his backyard. To prevent them from becoming infested with insects, he sprayed them with an organophosphate insecticide. He was in a rush to spray the trees before leaving town on vacation, and he failed to pay attention to the safety precautions on the packaging. He sprayed the trees without using any skin or respiratory protection. Soon he experienced severe stomach cramps, double vision, difficulty breathing, and was diagnosed with organophosphate poisoning. While in the emergency room, his physician administered a drug, and soon many of john’s symptoms subsided.

Organophosphate insecticides exert their effects by binding to the enzyme acetylcholinesterase within synaptic clefts, rendering it ineffective. Thus, the organophosphate poison and acetylcholine “compete” for the acetylcholinesterase as the organophosphate poison increases in concentration the enzyme is less effective in degrading acetylcholine. Organophosphate poisons affect synapses in which ACh is the neurotransmitter, including skeletal muscle synapses and some smooth muscle synapses, such as the wall of the stomach, intestines, and air passageways.

Question:
Explain the spastic contractions that occurred in John’s skeletal muscles. Include the function of this enzyme in normal muscle contractions, how increases in acetylcholine and less acetylcholinesterase affects skeletal muscle, what would happen if John did not get to the hospital and why this would happen. To answer this question fully you will write at least a paragraph.

Which type of alumina, “acidic” or “basic,” would provide for the better separation of acids?

Underline the media that are appropriate for extinguishing fires involving fluorene or 9-fluorenone:

Water. Carbon dioxide. Chemical powder. Foam

Is fluorene a carcinogen? a mutagen?

Is 9-fluorenone a mutagen?

1. In the laboratory, a general chemistry student measured the pH of a 0.538 M aqueous solution of nitrous acid to be 1.792.  
She then measured the pH of a 0.538 M aqueous solution of hydrofluoric acid to be 1.722.  
Use the information she obtained to determine the K_a for these acids.