1. What is a price ceiling and when does it becomes binding and non binding? Also provide an example.
2. What is a price floor and when does it becomes binding and non binding? Also provide an example.

A random sample of 378 hotel guests was taken at La Mirage and it was found that 194 requested non-smoking room. Another random sample of 516 hotel guests at Neptune Grand showed that 320 requested non-smoking room. We wan to test the claim that the percentage of guests requesting non-smoking room is different
between the two hotels, using significance level 0.05. Round you answer to 3 decimal places.

2. Protein-DNA binding

a) List the types of interactions that are involved between a protein that binds DNA non-specifically and DNA.

b) List two proteins that bind to DNA non-specifically.

c) List the types of interactions usually involved between a sequence-specific DNA binding protein and DNA.

d) List two proteins that bind DNA specifically.

e) What is the difference between non-specific and specific protein binding to DNA?

There are millions of unique visitors that consult Wikipedia, the free

online encyclopedia. The contents of the website are written by voluntary

contributors, and rarely does any of the readers make an edit. In 2011,

Wikipedia’s fund-raising campaign showed that only 3% of non-editing readers

donated to this non-profit. So clearly there are millions of readers who free ride

on the efforts of the editors and donors.

a. (5 points) Do you think that the knowledge made available via Wikipedia

is a public good? Evaluate (that is, provide your arguments for or against)

it based on the non-rivalness and the non-excludability features of a

public good.

b. (5 points) If you were to suggest some ways to reduce the free riding, what

would they be? Be specific.

C++

[2] Write a program that prompts the user to enter a non-negative decimal number and a base in the range 2 <= base <= 16. Write a function multibaseOutput() that displays the number in the specified base. The program terminates when the user enters a number of 0 and a base 0.

Run:
Enter a non-negative decimal number and base (2 <= B <= 16) or 0 0 to terminate: 155 16
    155 base 16 is 9B
Enter a non-negative decimal number and base (2 <= B <= 16) or 0 0 to terminate: 3553 8
    3553 base 8 is 6741
Enter a non-negative decimal number and base (2 <= B <= 16) or 0 0 to terminate: 0 0

1. The life spans of a species of fruit flies have a bell shaped distribution with a mean of 33 days and a standard deviation of 4 days.

1. The life spans of three randomly selected tires are 34, 30, and 42 days. Find the z-score for these life-spans and specify if any of the life spans are unusual.
2. The life spans of three fruit flies are 29, 41, and 25 days. Use the empirical rule to determine the percentile rank of each life span.
3. If a sample of 40 fruit flies is studied, how many fruit flies would have a life span between 25 and 41 days according to Chebychev’s theorem.

Barber and Odean, in their 2002 Journal of Finance paper entitled “Trading Is Hazardous to Your Wealth: The Common Stock Investment Performance of Individual Investors” state that:

“Our most dramatic empirical evidence supports the view that overconfidence leads to excessive trading. On one hand, there is very little difference in the gross performance of households that trade frequently (with monthly turnover in excess of 8.8 percent) and those that trade infrequently. In contrast, households that trade frequently earn a net annualized geometric mean return of 11.4 percent, and those that trade infrequently earn 18.5 percent.” Attempt to explain these findings using the behavioural finance theory.

A particular population, for which the frequency curve is bell-shaped (normal), has a mean of μ=100 and a standard deviation of σ=18. For samples of size n=36 consider the sampling distribution of the sample mean ("xbar").

Note that 18 36=3 and that

• 100±(1)(3)⟹97 to 103
• 100±(2)(3)⟹94 to 106
• 100±(3)(3)⟹91 to 109

According to the empirical rule, approximately _____ percent of samples of size 36 will produce a sample mean between 97 and 103.

Group of answer choices

99.7

90

95

68

None of the other choices represent a suitable response.

Choose a binomial probability experiment. You could flip a coin, or toss a basketball from the free throw line and see if you make the shot or miss, or choose another experiment where the outcome is a success or failure (only two possible outcomes.)  

1) Make a guess about the probability of success before doing the experiment.

2) Repeat the experiment 50 times, and record the results.

3) Calculate the empirical probability of success, and compare it to your original guess. Were you close or were you far off?

4) Write a paragraph explaining how you did the experiment and comparing your results to your guess