Questions
The popularity of computer, video, online, and virtual reality games has raised concerns about their ability...

The popularity of computer, video, online, and virtual reality games has raised concerns about their ability to negatively impact youth. The data in this exercise are based on a recent survey of 14- to 18-year-olds in Connecticut high schools. Here are the grade distributions of boys who have and have not played video games.

Grade average
A's and B's C's D's and F's
Played games 737 449 194
Never played games 204 143 79

The null hypothesis "no relationship" says that in the population of all 14- to 18- year-old boys in Connecticut, the proportions who have each grade average are the same for those who play and don't play video games.

(a) Find the expected cell counts if this hypothesis is true, and display them in a two-way table. Check that the row and column totals agree with the totals for the observed counts. (Round your answers to two decimal places.)

A's and B's C's D's and F's
Played games
Never played games

In: Statistics and Probability

A vehicle quality survey asked new owners a variety of questions about their recently purchased automobile....

A vehicle quality survey asked new owners a variety of questions about their recently purchased automobile. One question asked for the owner’s rating of the vehicle using categorical responses of average, outstanding, and exceptional. Another question asked for the owner’s education level with the categorical responses some high school, high school graduate, some college, and college graduate. Assume the sample data below are for 500 owners who had recently purchased an automobile.

Education
Quality Rating Some HS HS Grad Some College College Grad
Average 35 30 25 65
Outstanding 45 45 50 95
Exceptional 20 25 25 40

a. Use a .05 level of significance and a test of independence to determine if a new owner's vehicle quality rating is independent of the owner's education.

Compute the value of the x^2 test statistic (to 2 decimals). _________

The p-value is _________

What is your conclusion?

__________(Cannot Conclude/Conclude) that the quality rating is not independent of the education of the owner.

b. Use the overall percentage of average, outstanding, and exceptional ratings to comment upon how new owners rate the quality of their recently purchased automobiles.

Average __________%
Outstanding __________%
Exceptional __________%

New owners ________(do not appear/appear) to be satisfied with the recent purchase of their automobile. _________% of owners rated their automobile as Outstanding or Exceptional.

In: Statistics and Probability

Discussion Questions: Tell Them We Are Rising Why were different HBCUs founded? Name some organizations involved...

Discussion Questions: Tell Them We Are Rising

Why were different HBCUs founded?

Name some organizations involved in starting HBCUs?

Why was education so important to newly freed slaves?

Why are the HBCUs primarily found on the east coast with a high percentage in the south?

In: Economics

What is Nucor Skill? Who is the first to establish it? How it got famous? when...

What is Nucor Skill? Who is the first to establish it?
How it got famous?
when did it founded and by who? Example?
What is the job looks like? How can someone apply?
Just write 2 page about Nucor Skill.

I need help with this please

In: Finance

Prepare a budget (one month) for An Internet Startup Advertising company. This Internet company has 3...

Prepare a budget (one month) for An Internet Startup Advertising company. This Internet company has 3 people: Software developer, sales, website maintenance/accounting. These 3 people founded this company by themselves, they are in different locations and work from their homes. All figures should be reasonable.

In: Finance

A school district undertakes an experiment to estimate the effect of class size on test scores...

A school district undertakes an experiment to estimate the effect of class size on test scores in second-grade classes. The district assigns 50% of its previous year’s first graders to small second-grade classes (18 students per classroom) and 50% to regular-size classes (21 students per classroom). Students new to the district are handled differently: 20% are randomly assigned to small classes and 80% to regular-size classes. At the end of the second-grade school year, each student is given a standardized test. Let Yi denote the test score for the ith student, Xi denote a binary variable that equals 1 if the student is assigned to a small class, and Wi denote a binary variable that equals 1 if the student is newly enrolled. Let β1 denote the causal effect on test scores of reducing class size from regular to small.

a. Consider the regression Yi= β0 + β1Xi+ ui. Do you think that E[ui|Xi] = 0? Is the OLS estimator of β1 unbiased and consistent? Explain.

b. Consider the regression Yi= β0 + β1Xi + β2Wi+ ui. Do you think that E[ui|XiWi] depends on Xi? Is the OLS estimator of β1 unbiased and consistent? Explain. Do you think that E[ui|Xi,Wi] depends on Wi? Will the OLS estimator of β2 provide an unbiased and consistent estimate of the causal effect of transferring to a new school (that is, being a newly enrolled student)? Explain.

In: Economics

1.A firm has a significant amount of debt outstanding and its operations hit a rough patch....

1.A firm has a significant amount of debt outstanding and its operations hit a rough patch. If it appears that bankruptcy is imminent, the firm’s management may invest in high-risk projects having a negative NPV because:

A.the firm’s equity beta is now negative.

B.the firm’s debt beta is now negative.

C.corporate income taxes are no longer a concern.

D.the firm’s debt holders bear most of the project’s downside risk.

2.Home Builder Supply, a retailer in the home improvement industry, currently operates seven retail outlets in Georgia and South Carolina. Management is contemplating building an eighth retail store across town from its most successful retail outlet. The company already owns the land for this store, which currently has an abandoned warehouse located on it. Last month, the marketing department spent $10,000 on market research to determine whether to build and open the new store. Which of the following should not be included as part of the incremental free cash flows for evaluating the proposed new retail store?

A.The cost of demolishing the abandoned warehouse and clearing the lot.

B.The expected loss of sales at its existing retail outlet, if customers who previously drove across town to shop at the existing outlet become customers of the new store instead.

C.The $10,000 in market research spent to evaluate customer demand.

D.Construction costs for the new store.

E.The value of the land if sold. There is currently an offer of $250,000 from an interested buyer

3.The pecking order theory of capital structure predicts that firms will fund positive NPV projects first with internally generated funds, then with debt, and finally with new equity. What is the primary insight of the pecking order story theory that leads to this funding ordering in which equity is only issued as a last resort?

A.Issuing debt is always superior to issuing equity because interest paid to debtholders is tax deductible whereas dividends paid to shareholders are not.

B.The opportunity cost of internally generated funds is low in comparison to issuing new debt or equity because the alternative to retaining the funds and investing in new projects is to pay the funds out as dividends.

C.Issuing equity dilutes earnings per share.

D.Investors and managers are asymmetrically informed about the firm’s operations and value. There is an adverse selection cost of issuing equity because investors believe a firm is likely to issue equity when management believes the firm’s stock is overpriced.

In: Finance

Srini Nair owns and operates a grocery store in Fort McMurray. He has a number of...

Srini Nair owns and operates a grocery store in Fort McMurray. He has a number of employees including Ragini Sharma who is his assistant manager. Ragini has very limited authority to act on Srini’s behalf. One day while Srini was out of town, a distributor of produce offers Ragini a great deal on fiddleheads, a delicacy from New Brunswick. Due to the perishable nature of fiddleheads, the deal is only available for one day. As Srini’s grocery store caters to many transplanted New Brunswickers, Ragini places an order. When Srini returns the next day and the fiddleheads arrive, he rejects them on the basis that he has never heard of anyone ever eating fiddleheads.

i. Is Srini bound to accept and pay for the fiddleheads?

ii. How should businesses like Srini’s deal with the risk of employees exceeding their authority to act on behalf of the business?

In: Finance

#2A. The Concert of Europe was most successful at: a. ending the political domination of the...

#2A. The Concert of Europe was most successful at:

a. ending the political domination of the Holy alliance of Greece

b. thwarting Britain’s attempts to intervene and crush revolts in Italy & Spain

c. crushing the colonial revolts in Latin America

d. helping maintain peace in Europe for most of the 19th century

#2B. Short answer: Explain in your own words what you understand the Concert of Europe to be. Do you think such a situation is an oddity in history or fairly normal?

In: Psychology

Mrs. Fatima is 65 years old , celebrating her birthday . She is widow , lost...

Mrs. Fatima is 65 years old , celebrating her birthday . She is widow , lost her husband 6 month back . She lives alone but she has grandchildren who sometimes visit her She works as a school teacher . Everyone in the school was thanking her for her good work . Ali is a teacher working in the same school , he commented telling her that you are supposed to be at home by this age , you don't have enough strength to continue your career . Mrs. Fatma has changes in her health condition as now she becomes fatigued easily , she also experience shortness of breath when she walked a blocks , sometimes she experience gastritis

1. What do you think the major role changes Mrs. Fatma is experiencing? As a nurse how you can help her to cope with her new role?

2. As a nurse how you can prepare her for retirement?

In: Nursing