1. Write at least two sentences in your own words to explain the difference of using flexible boundary channel and the rigid boundary channel (based on the design considerations presented here).

2. Answer True or False and justify your answer:

    a. The rigid boundary channel is recommended for channels with very high velocities because it can easily resist the shear stress caused by the water flow.

    b. The trapezoidal cross section (with a value of m = 4 or more) is always more appropriate to be used instead of the rectangular channel in areas in which the neighboring land use restricts the channel top width.   

An earthquake P wave traveling at 7.7km/s strikes a boundary within the Earth between two kinds of material.

If it approaches the boundary at an incident angle of 44? and the angle of refraction is 33?, what is the speed in the second medium?

Express your answer to two significant figures and include the appropriate units.

A small grassroots organization has been running a food pantry for about five years. They are located in the community center of a local church. The church is its only major partner. They typically open about two days per week and provide food for local families that stop in. The hours of operation are a bit inconsistent. Most of their donations, of late, have come from the church. Sometimes, they collect hats, scarves and gloves to distribute during winter months. It's nothing formal. They collect whatever is donated and distributed to local families who can use it. For the first time in five years, the pantry is bare, no donations or contributions are coming in, and very few families are stopping by. The church is thinking that it may be time to end the partnership. You recently joined the board of directors to gain some exposure to nonprofits; and at your first board meeting, they mention that they may be shutting down the food pantry and the church may be ending its partnership. Based on your reading to date, what actions would you recommend that the organization take before closing?

Things to consider:

-What are some of the inconsistencies presented in this case study?

-What immediate actions should the board consider before closing the organization?

-What type of evaluation should the board consider and why?

-How is the organization funded?

Communication is constitutive, which means

A. Communication is the key to family happiness.

B. Communication constructs the relationships between family members.

C. Communication displays the family’s interactions.

D. Communication patterns cross generations.

True or False Questions:

1. The Communication Privacy Management Theory identifies four concepts that guide the privacy rule management process: 1.  Boundary Rule Usage, 2. Boundary Rule Formation, 3. Boundary Rule Function, and 4. Boundary Rule Coordination.

______

2.Meanings attached to relational currencies have a direct impact on relationship development

3.Insistence on maintaining rituals from the previous families can threaten the new stepfamily.

4.The all-channel network maintains the parents at the center of the network.

5. Family rules are heavily influenced by ethnic backgrounds

6.  Equifinality is the principle that in open systems a given end state can be reached by many potential means.

4.1. In the period from 1977 we have largely witnessed a period of disappearing dividends. Research by Baker and Wurgler (2004) argues that the disappearing dividends are caused by firms catering to changes in investor sentiment for dividends. Briefly explain their reasoning.

4.2. Explain why managers are in a better position to exploit stock market inefficiencies than other investors.

4.3. Discuss the market timing theory with respect to managers’ decisions to issue new equity or new debt or proceed to stock repurchases.

4.4. Explain the Market timing theory in a mergers and acquisitions framework

What are the costs for this economics class: What are the fixed costs? What are the variable costs?

3. Discuss the advantages and disadvantages for each of the following: a sole proprietorship, a partnership, and a corporation.

4. What is the price of Google stock currently today? What has caused the change in price since its 2004 IPO at $85/share? How has its price fluctuated over the past two weeks?

5. What economic or financial changes do you feel you will personally see from our current economic environment and coronavirus situation?

A non-profit organization is collecting data about how alcohol consumption affects academic performance. They want to perform a hypothesis test to see whether there is a relationship between how much alcohol a student consumes, and whether they are in good academic standing (GPA greater than or equal to 2.0). The results are summarized in the table below:

a. Find the expected frequency for the number of students that drink 3+ drinks per week and are in poor academic standing, under the assumption of independence. Round your answer to 2 decimal places.

b. State the null and alternative hypothesis for the Chi-Squared test for independence: Select your answer from one of the following options.

• a.?0:There is a relationship between alcohol consumption and academic standing.??:Academic standing and alcohol consumption are independent characteristics.
• b.?0:It is impossible to be in good academic standing if you drink 3 or more drinks per week.??:It is possible to drink 3 or more drinks per week and be in good academic standing.
• c.?0:Drinking 3 or more drinks per week will increase the chance you are in poor academic standing.??:Drinking 3 or more drinks per week will increase the chance you are in good academic standing.
• d.?0:Academic standing is independent of how much a student drinks.??:There is a relationship between academic standing and how much a student drinks.

c. Using the Google Sheets command =CHITEST, find the p-value for the Chi-Squared test for independence. Round your answer to 4 decimal places.

d. Interpret your result:Select your answer from one of the following options.

• a.Fail to reject the null hypothesis. At a significance level of 0.05, there is not enough evidence to conclude there is a relationship between alcohol consumption and academic standing.
• b.Reject the null hypothesis. At a significance level of 0.05, there is enough evidence to conclude there is a relationship between alcohol consumption and academic standing.
• c.Fail to reject the null hypothesis. At a significance level of 0.05, there is enough evidence to conclude there is no relationship between alcohol consumption and academic standing.
• d.Reject the null hypothesis. At a significance level of 0.05, there is enough evidence to conclude that there is no relationship between alcohol consumption and academic standing.

1) The Gallup Poll asked a random sample of 1785 adults whether they attended church or synagogue during the past week. Of the respondents, 44% said they did attend. Suppose that 40% of the adult population actually went to church or synagogue last week. Let p^ be the proportion of people in the sample who attended church or synagogue. Find the probability of obtaining a sample of 1785 adults in which 44% or more say they attended church or synagogue last week. Do you have any doubts about the result of this poll?

2) Suppose 47% of all adult women think they do not get enough time to themselves. An opinion poll interviews 1025 randomly selected women and records the sample proportion who feels they don’t get enough time for themselves. If this sample were repeated numerous times, in what range would the middle 95% of the sample results fall? What is the probability the poll gets a sample in which fewer than 45% say they do not get enough time for themselves?

(6) Consider the function f(x, y) = 9 − x^2 − y^2 restricted to the domain x^2/9 + y^2 ≤ 1. This function has a single critical point at (0, 0)

(a) Using an appropriate parameterization of the boundary of the domain, find the critical points of f(x, y) restricted to the boundary.

(b) Using the method of Lagrange Multipliers, find the critical points of f(x, y) restricted to the boundary.

(c) Assuming that the critical points you found were (±3, 0) and (0, ±1, find the absolute maximum and minimum of f(x, y) restricted to this domain.

The Federal Trade Commission has the responsibility of investigating and regulating unfair advertising practices. The Commission has issued strong new guidelines for the funeral industry.

If a mortician was aware of the relationship between elasticity of demand and total revenue, how might he or she take advantage of this information? (Details and explanation, please).