Which of the following statements concerning models of product differentiation, if any, are correct?

Do larger universities tend to have more property crime? University crime statistics are affected by a variety of factors. The surrounding community, accessibility given to outside visitors, and many other factors influence crime rate. Let x be a variable that represents student enrollment (in thousands) on a university campus, and let y be a variable that represents the number of burglaries in a year on the university campus. A random sample of n = 8 universities in California gave the following information about enrollments and annual burglary incidents.

(a) Use a calculator to verify that Σx = 151.0, Σx² = 3252.58, Σy = 246, Σy² = 10438 and Σxy = 5430.8.

Compute r. (Round to 3 decimal places.)

(b) Compute the sample correlation coefficient r for each of the following data sets and show that r is the same for both. (Use 3 decimal places.)

In 2016, the US ran a $347 billion trade deficit in good with China and $65 billion trade deficit with Germany. Meanwhile, the gross national savings to GDP ratio was 46% in China, 28% in Germany, and 18% in the US in 2016. (the average were 42%, 24%, and 19%, respectively during 1980-2016.) President Trump frequently accused both countries of currency manipulation, which, he argued, caused the US trade deficit. a.) In light of this information and based on your understanding of the national income accounting and determinants of current account balances, explain what are the implicit explanations for the US trade deficit with China and Germany here? b.) To improve the US current account balance with China and Germany what would you reccomend?

I'm completely lost can someone really break it down in English with how to answer each

For each question, draw the appropriate picture, with shading. Then show all calculations and write a sentence for your answer.

The weight of new-born babies in the US is normally distributed with a mean of 7.5 pounds and a standard deviation of 2 pounds.

What percentage of new-born babies in the US weighs more than 7.5 pounds?

What is the probability that a new-born baby in the US weighs more than 9.5 pounds?

What is the chance that a new-born baby in the US weighs less than 3.5 pounds?

What is the probability that a new-born baby in the US weighs between 3.5 pounds and 9.5 pounds?

1. The coronavirus is currently wreaking havoc on the world economy. There are many reasons for this, so let’s simplify by focusing on just one. Suppose the primary effect of the coronavirus is to create “uncertainty”, which leads investors to increase their demand for “liquidity” (i.e., it increases the demand for money relative to other assets). Use the DD-AA model to show how this would affect the US economy. What happens to US output and the value of the dollar? US policymakers are currently debating whether to respond by cutting interest rate or increasing government spend- ing. Which of these policy responses would Canada favor? Which would China favor? (Hint: The Canadian dollar floats against the US dollar, whereas the RMB is pegged to the US dollar).

You are conducting a study to see if the proportion of voters who prefer Candidate A is significantly more than 47%. With Ha : p > 47% you obtain a test statistic of z = 1.997. Find the p-value accurate to 4 decimal places. p-value =

You are conducting a study to see if the accuracy rate for fingerprint identification is significantly less than 0.62. Thus you are performing a left-tailed test. Your sample data produce the test statistic z = − 2.853. Find the p-value accurate to 4 decimal places. p-value =

The Dean of ASBE School of Business is concerned that grades in the MBA program are distributed appropriately. Too many high grades or too many low grades would pose a problem. We wish to test the claim that the mean GPA of ASBE students is smaller than 3.3 at the .05 significance level. The null and alternative hypothesis would be: H 0 : μ = 3.3 H a : μ ≠ 3.3 H 0 : p = 3.3 4 H a : p < 3.3 4 H 0 : μ = 3.3 H a : μ > 3.3 H 0 : μ = 3.3 H a : μ < 3.3 H 0 : p = 3.3 4 H a : p > 3.3 4 H 0 : p = 3.3 4 H a : p ≠ 3.3 4 Correct The test is: left-tailed right-tailed two-tailed Correct Based on a sample of 50 student grades, the sample mean GPA was 3.29 with a standard deviation of 0.06 The test statistic is: Incorrect (Round to 3 decimals) Based on this we: Reject the null hypothesis Fail to reject the null hypothesis

1. Indicate whether the ratios are favorable/unfavorable in comparison to the Industry Average and explain the trend of the two ratios below.
2. Analyze the implication of high Times interest earned ratio.
3. Write down the implication of having a low Debt to Total Asset Ratio. (1.5 marks)

Medical insurance is usually charged based on the health factors as well as the number of dependencies of the beneficiary. Body mass index (bmi) is an important health index.

use SAS to answer : (please write the code in SAS only)

1- How does bmi depend on the residential region of the beneficiaries.

2- How do insurance charges depend on the beneficiary’s smoking habit and their number of children.

Variable Description

age: Age of the primary beneficiary

sex: insurance contractor

gender: (female/ male)

bmi : Body mass index, providing an understanding of body, weights that are relatively high or low relative to height, objective index of body weight (kg / m) using the ratio of height to weight, ideally 18.5 to 24.9

weight_range : Weight classification according to bmi (underweigh(bmi < 18.5)/healthy (18.5 ≤ bmi < 25)/overweigh(25 ≤ bmi < 30)/ obese(bmi ≥ 30))

children: Number of children covered by health insurance / Number of dependents smoker

Smoking: (yes/no)

region: the beneficiary’s residential area in the US, northeast, southeast, southwest, northwest

charges: Individual medical costs billed by health insurance

b) Select the most correct response:

i. An important indicator of a nations well-being is: a. Gross Domestic Product (GDP) b. Gross National Product (GNP) c. The growth rate of GDP and GNP

ii. Which of the following combination of monetary policy and fiscal policy can be used to reduce inflation? a. Increase taxes and sell government bonds b. Decrease taxes and sell government bonds c. Increase taxes and buy government bonds

iii. Which of the following changes in taxes and government spending is necessarily expansionary? a. Increase in taxes and decrease in government spending b. Decrease in taxes and increase in government spending c. None of the above

iv. Arrow's impossibility theorem suggests that: a. There is no voting procedure which can aggregate individual preferences b. Democracy is dysfunctional c. There is no perfect voting procedure that can tell us the group's “true” interests

v. Which of the following sets of preferences are intransitive (e.g., in a vote cycle)? a. Nero is preferred to Cesar. Cesar is preferred to Antony. Nero is preferred to Antony b. Nero is preferred to Cesar. Antony is preferred to Nero. Cesar is preferred to Antony c. None of the above

In 250 focuses on what it means to be an active participant in society, an individual capable of shaping the world, and how we understand and practice multiculturalism. Understanding context and testing what you know about genres, culture, and history will be important to your study of the works in this module., especially the literary terms we’ve studied and the role of writers in shaping our worlds. Please type

1 What does it mean to be an activist?

2 Do you have to be a revolutionary, a loud or rebellious person?

3 Do some internet research into “activists” of the past and present.

4 What traits do they have in common? What value do they offer our society? To what degree do we rely on activists to “fight the good fights” for us?

5 Should we all be more “active” in shaping society?

6 Why or why not?

7 What did you learn that you did not know or that you found interesting/enlightening?

8 What surprised you or made you think or do further research?

9 If you were to share this information with a friend, what would be important for you to convey and why?