During the Great Plague of 1665 in London, medical experts claimed that smoking tobacco would prevent a person from catching the disease. Even school children were ordered to smoke during class, and one boy at Eton was whipped for refusing to smoke.What effect did this have on the market for tobacco? Use a supply and demand diagram to explain.(15%)

The weights of newborn baby boys born at a local hospital are believed to have a normal distribution with a mean weight of 3311 grams and a standard deviation of 404 grams. If a newborn baby boy born at the local hospital is randomly selected, find the probability that the weight will be less than 3715 grams. Round your answer to four decimal places.

What are the main chemical reactions involved in AMD formation?

What is the “initiator reaction” and the “propagation cycle”? Why is this cyclical nature (regeneration of Fe2+) problematic?

How do microbes play a role in these reactions?

What is “yellow boy”?

Oxidation of Fe2+ is very slow at low pH values. Why does this reaction occur then in acidic environments?

Compute both a paired t-test and two-sample t-test (for practice) but report the t-value for the correct test.

What are the main chemical reactions involved in AMD formation?

What is the “initiator reaction” and the “propagation cycle”?

Why is this cyclical nature (regeneration of Fe2+) problematic? How do microbes play a role in these reactions?

What is “yellow boy”? Oxidation of Fe2+ is very slow at low pH values. Why does this reaction occur then in acidic environments?

A physical fitness association is including the mile run units secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 475 seconds and a standard deviation of 65 seconds. Find the probability that a randomly selected boy in secondary school will take longer than 354 seconds to run the mile.

The parents of a 4-year-old boy explain to the clinic nurse that for weeks the child has been irritable and listless and even though he has developed a poor appetite, has gained weight. What signs and symptoms should the nurse look for, and what condition should the nurse suspect? What nursing interventions and parent education are appropriate?

A 9 monthold boy is insulin dependent diabetes mellitus (DDM) was seen in a pediatric diabetic clinic in London. He was well and had no gastrointestical symptoms. He was screened for antibodies. The screening test has a sensitivity of .93 and specificity of .90. The prevalence is 4.5 It was estimated that the patient.s CD willo be 4.5%. What will his post test probability be?

A 17-year-old boy arrived to the ED after going into cardiac arrest during a football practice. Diagnostic testing reveals cardiomyopathy. Which type of cardiomyopathy commonly presents this way?

a. Hypertrophic cardiomyopathy (HCM)

b. Restrictive or constrictive cardiomyopathy (RCM)

c. Arrhythmogenic right ventricular cardiomyopathy (ARVC)

d. Dilated cardiomyopathy (DCM).

1. A boy in a pedal car is moving at a speed of 1.40 m/s at the start of a 2.10 m high and 12.4 m long incline. The total mass is 54.5 kg, air resistance and rolling resistance can be modeled as a constant friction force of 41.0 N, and the speed at the lower end of the incline is 6.80 m/s. Determine the work done (in J) by the boy as the car travels down the incline.

2. An energy-efficient lightbulb, taking in 24.0 W of power, can produce the same level of brightness as a conventional lightbulb operating at power 100 W. The lifetime of the energy-efficient bulb is 10 000 h and its purchase price is $4.60, whereas the conventional bulb has lifetime 750 h and costs $0.46 per bulb. Determine the total savings obtained by using one energy-efficient bulb over its lifetime as opposed to using conventional bulbs over the same time period. Assume an energy cost of $0.20 per kilowatt-hour.