Instructions: Choose one of the two options described below. Analyze the data using what you have learned in class.

Instructions: Your answer will include the following:

• A statement of the research question
• A description of the source of the data
• A description of the variables used in the analysis
• A contingency table (two-way table)
• Calculations of relevant percentages
• An answer to the question based on your analysis of the data

Option 1: Cheating

Research questions (do both):

• Are college students willing to report cheating?
• Is the willingness to report cheating related to   gender?

Investigate these questions for the students described in    body_image.xls.

This data comes from a survey of university students at Carnegie Mellon University in Pittsburgh, PA.

Here are the survey questions and associated variables:

Are you a male or a female? Gender (male, female) What is your height in inches? Height (in inches) What is your GPA? GPA

What was your high school GPA?    HS GPA

Where do you tend to sit in class?   Seat (F=front, M=middle, B=back)   How do you feel about your weight? WtFeel (OverWt, AboutRt, UnderWt) Would you report cheating if you witnessed it?    (yes, no)

Option 2: Gender and Body Image

Research question: Do female college students tend to feel differently about their weight compared to male college students?

Investigate this question for the students described in   body_image.xls.

This data comes from a survey of university students at Carnegie Mellon University in Pittsburgh, PA.

Here are the survey questions and associated variables:

Are you a male or a female? Gender (male, female) What is your height in inches? Height (in inches) What is your GPA? GPA

What was your high school GPA?    HS GPA

Where do you tend to sit in class?   Seat (F=front, M=middle, B=back)   How do you feel about your weight? WtFeel (OverWt, AboutRt, UnderWt) Would you report cheating if you witnessed it?    (yes, no)

5. For a random sample of 50 American cities, the linear correlation coefficient between the number of homocides last year and the number of schools in the city was found to be r = 0.653. a. What does this imply?

b. Does this suggest that building more schools in a city could lead to higher levels of homocides? Why or why not?

c. What is a likely lurking variable?

6. The data below are the first exam scores of 10 randomly selected members of a prior stats class and the number of hours they slept the night before the exam.

a. Find the equation of the regression line for the given data. Round the regression line values to the nearest hundredth.

b. What would be the predicted score for a stats student who pulled an all nighter (got 0 hours of sleep) the previous night? Round the predicted score to the nearest whole number.

c. Is this a reasonable question? Explain why or why not.

9. Each year a nationally recognized publication conducts its "Survey of America's Best Graduate and Professional Schools." An academic advisor wants to predict the typical starting salary of a graduate at a top business school using GMAT score of the school as a predictor variable. Total GMAT scores range from 200 to 800. A simple linear regression of SALARY versus GMAT using 25 data points shown below.

Ά0 = -92040 Ά1 = 228 s = 3213 R 2 = 0.66 df = 23 t = 6.67

a) Give a practical interpretation of the estimate of the y-intercept of the least squares line. If none exist explain why.

b) Give a practical interpretation of the slope of the least squares line. If none exists explain why.

c) Give a practical interpretation of R2 = .66

d) Find r

Case study

Rolando Garza is 28 years old, Hispanic, and had partial complex seizure. He is the only child in

a strongly traditional Mexican-American family. The family response to his epilepsy tended

toward overprotective. Since his late teens, Mr. Garza’s family physician has been treating him

with Phenobarbital; yet adequate seizure control has never been achieved.

Mr. Garza seeks vocational rehabilitation services while still suffering from third degree, or deep

partial thickness burns he sustained while working as a chef in a neighborhood restaurant. This is

the second burn he has experienced while at work. Mr. Garza explains that his seizure condition

is disconcerting, but he has more or less become accustomed to it. Seizures occur once every two

to three months.

Mr. Garza is a high school graduate with one year of college. Results of aptitude testing suggest

he has high intelligence. He professes an interest in engineering and completed several years of

architectural drafting coursework while in high school and college. Due to lack of funding, Mr.

Garza states that he was unable to continue his college education.

Presently, Mr. Garza is unsure what to do. He is financially compromised and must leave the

rental home he shares with roommates to move back with his parents. An avid user or his home

computer and the Internet, Mr. Garza believes has developed expertise in this area.

1. What are the issues related to Mr. Garza’s current medical care? What should the referral

sequence be in order to optimize his care?

2. Is Mr. Garza a possible candidate for epilepsy surgery? Explain.

3. Should Mr. Garza attempt to return to his job at the restaurant? Support your response.

4. What are the potential vocational rehabilitation counseling issues related to Mr. Garza’s

situation?

5. Describe cultural considerations relevant to this case and implications of the family’s

overprotective?

Ivanhoe Co. provides music lessons to many clients across the city. The following information is available to be used in recording annual adjusting entries at the company’s September 30, 2021, year-end: 1. On October 1, 2020, the company had a balance of $1,990 in its supplies account. Additional supplies were purchased during the year totalling $1,790. The supplies inventory on September 30, 2021, amounts to $800. 2. On November 1, 2020, Ivanhoe purchased a one-year insurance policy for $3,120. 3. On January 2, 2021, a client paid $1,560 for six months of lessons starting April 2, 2021. 4. On February 1, 2021, Ivanhoe purchased a grand piano (to be used in music lessons) for $25,200. The piano’s estimated useful life is 12 years. 5. On May 1, 2021, Ivanhoe borrowed $29,400 from the bank and signed a 10-month, 8% note payable. Interest and principal are to be paid at maturity. 6. On August 1, 2021, Ivanhoe signed a contract with a neighbourhood school to provide weekly piano lessons to some of its students for a fee of $1,760 per month. The contract called for lessons to start on September 1, 2021. The school has not yet been sent an invoice for the month of September. 7. On August 15, 2021, the company paid $10,080 to Pinnacle Holdings to rent additional studio space for nine months starting September 1. Ivanhoe recorded the full payment as Prepaid Rent. 8. Ivanhoe’s instructors have earned salaries of $3,370 for the last week of September 2021. This amount will be paid to the instructors on the next payday: October 6, 2021. 9. Music lessons were provided to a local church group for $1,260 on September 30, 2021. Ivanhoe has not yet invoiced the group or recorded the transaction. 10. In early October 2021, Ivanhoe received an invoice for $910 from the utility company for September utilities. The amount has not yet been recorded or paid. Prepare the adjusting journal entries.

So, you go into a Best Buy and you want to buy these wonderful, sparkly gadgets called phones. These phones require a signature where you are agreeing to pay a certain amount each month depending on the phone that you like and it gets added onto your contract. You are a 17 and a half year old who just got a job at Chipotle. You are so excited and you want to use your paycheck and sign up for the latest Samsung Galaxy 9 phone. (Not too big, not too small, just right). So you now have the latest phone and you realize that you have just made a contract to but a phone for $47.00 per month for two years. You are only working part-time, and you havent even graduated high school yet. Your parents have told you that because you have a JOB, you can pay for your application fees for the colleges you are applying to. You also are going to have to pitch into the finances of the family and help out with groceries and other necessities in the house. You are overwhelmed and you realize that you cannot pay for all of this stuff, meet all of these obligations, and also make sure that you are getting enough hours at Chipotle to pay your bills. You say to yourself, "I don't need this Samsung Phone." So you say to the phone carrier that you are repudiating the contract because you are too young to understand what it means to be an adult and you cannot manage all of these bills at such a young age.You give back the phone and the box and state that you need to cancel the phone contract.

1. Can a person of this age repudiate the contract at this age? Wouldn't this be unfair to the phone company?

2. Would it be unconscionable for the phone company to still enforce the contract on a person of high school age?

3. Can the phone company go to court and enforce the contract on the child and his parents? Why or why not?

________1. Randy Hill wants to retire in 10 years with $500,000. He can earn 6% per year on his investments. Compute how much he needs to deposit each year to reach his goal. ________2. Joe Morris wants to start a savings fund from which his grandson could withdraw $3,000 a year for 10 years. The fund would earn 5% interest. Compute the amount Joe would have to deposit now to reach his goal. ________3. Your rich aunt has offered to finance five years of college for you. The annual cost will be $30,000 and the interest rate is 5%. Compute how much money your aunt must give you now to finance the five years of college. ________4. Assume your father is 55 and wants to retire at age 65 with $300,000 in a retirement fund. The interest rate is 8%. Compute how much he must deposit at age 55 to accumulate the $300,000. ________ 5. Assume you want to have $25,000 for a down payment for a house in five years. Compute the amount you would need to deposit today. Your money will earn 5 percent. ________ 6. Jeff Renfro is planning to go to graduate school (Ph.D) in a program of study that will take six years. Jeff wants to have $35,000 available each year for various school and living expenses. He can earn 5 percent on his money. Compute how much he must deposit at the start of his studies to be able to withdraw $35,000 a year for six years. ________7. Angie Baden deposits $10,000 a year into her retirement account. These funds will earn 8 percent over the 10 years until her retirement. Compute what the value of her retirement account will be when she retires. ________8. Assume you borrow $80,000 with a 7 percent interest rate, to be repaid in seven equal yearly payments. Compute the amount of each payment.

On 11 August 2020, Vanya Ho entered into a contract with Diego Toh to renovate her school, The Umbrella Learning Centre and to set up the internet system for the school’s online lessons starting in October. They agreed to the total sum of $100,000 with a 10% deposit of $10,000 to be paid on the signing of the contract. $20,0000 was to be paid upon the design being approved by Vanya Ho. The balance of $70,000 was to be paid on the completion of the renovation works. The contract provided that Diego Toh was to complete the renovation works and handover the school to Vanya Ho not later than 20 September 2020.

The design was approved by Vanya Ho on 18 August 2020. Diego Toh proceeded with the renovation which was completed on 19 September 2020. Vanya inspected the renovation work on 20 September 2020. She was not pleased with the internet system when she tested the wifi connection. The wifi signals were weak and created issues for running the online lessons. Diego Toh explained that his electricians have gone back to Malaysia and would only be back early 2021. He insisted that the renovation works including the setting up of the internet system were in accordance with the design as approved by Vanya.

On 21 September, Vanya Ho called an independent electrician, Klaus Soh, to inspect and advise on internet system. Klaus Soh explained that the internet system was poorly set-up. He quoted $2,000 to rectify the defects which could be completed by 25 September 2020.

On 22 September, Diego Toh contacted Vanya Ho and demanded payment of the balance amount of $70,000. Vanya Ho refused to pay the balance and insisted that Diego Toh rectify the internet system by 26 September 2020.

Advise Diego Toh on the following:

Diego Toh would like to claim the full amount of $70,000. Discuss the LEGAL PRINCIPLES concerning the performance of the contract, APPLY the legal principles, and CONCLUDE on whether Diego Toh could discharge the contract with Vanya Ho and claim the full amount of $70,000.

(1 point) A researcher is interested in whether the number of years of formal education is related to a person's decision to never smoke, continue to smoke, or quit smoking cigarettes. The data below represent the smoking status by level of education for residents of the United States 18 years or older from a random sample of 475 residents. Round all numeric answers to four decimal places.

1

1. Select the name of the test that should be used to assess the hypotheses:

H0H0: "Smoking Status" is independent of "Education Level"

HAHA: "Smoking Status" is not independent of "Education Level"

A. X2X2 goodness of fit
B. X2X2 test of independence
C. X2X2 test of a single variance

2. Under the null hypothesis, what is the expected number for people with an education of Some college and a smoking status of Never?

3. Calculate the X2X2 test statistic.

4.What was the contribution of Never smokers who attended Some college toward this test statistic?

5. What are the degrees of freedom for this test?

6. What is the p-value for this test?

7. Based on the p-value, we have:
A. extremely strong evidence
B. very strong evidence
C. strong evidence
D. little evidence
E. some evidence
that the null model is not a good fit for our observed data.

8. Which of the following is a necessary condition in order for the hypothesis test results to be valid? Check all that apply.

A. There must be an expected count of at least 5 in every cell of the table.
B. The population data must be normally distributed.
C. There must be at least 10 "yes" and 10 "no" observations for each variable.
D. There must be an observed count of at least 5 in every cell of the table.
E. The observations must be independent of one another.

A researcher is interested in whether the number of years of formal education is related to a person's decision to never smoke, continue to smoke, or quit smoking cigarettes. The data below represent the smoking status by level of education for residents of the United States 18 years or older from a random sample of 350 residents. Round all numeric answers to four decimal places. Smoking Status Education Level Current Former Never Less than high school 46 12 26 High school 5 21 37 Some College 24 53 126 1. Select the name of the test that should be used to assess the hypotheses: H0: "Smoking Status" is independent of "Education Level" HA: "Smoking Status" is not independent of "Education Level" A. X2 test of independence B. X2 goodness of fit C. X2 test of a single variance 2. Under the null hypothesis, what is the expected number for people with an education of Some college and a smoking status of Current? 3. Calculate the X2 test statistic. 4.What was the contribution of Current smokers who attended Some college toward this test statistic? 5. What are the degrees of freedom for this test? 6. What is the p-value for this test? 7. Based on the p-value, we have: A. extremely strong evidence B. some evidence C. strong evidence D. little evidence E. very strong evidence that the null model is not a good fit for our observed data. 8. Which of the following is a necessary condition in order for the hypothesis test results to be valid? Check all that apply. A. There must be an expected count of at least 5 in every cell of the table. B. There must be at least 10 "yes" and 10 "no" observations for each variable. C. The population data must be normally distributed. D. There must be an observed count of at least 5 in every cell of the table. E. The observations must be independent of one another.