1. (20 pts) Use the “Distance.sav” (SPSS) data set (located below) to perform a linear regression analysis. This dataset shows how far on average a person in Illinois drives each year. Write your findings using the format presented in the class slides. (2 pts) How much of the variation in the dependent variable is explained by the variation in the independent variable? What statistic did you use? (2 pts) Is the linear model significantly different than zero? Why or why not? What statistic did you use? (4 pts) Do the model assumptions hold? Why or why not? Provide a thorough response. (Hint: Create both a Histogram and a Normal probability plot using the standardized residuals. Also create a scatterplot of Regression Standardized Residuals and the Regression Standardized Predicted Value of the dependent variable. Attach a copy of each below.)

1) Using the excel data file “US violent crime” which shows the violent crime rate in the US from 1960 to 2012:

(20 pts) Make a time series plot of the data

(5 pts each 25 pts total) Determine the following: Mean, Median, Standard deviation, Q1 and Q3. (25 pts)

Make a histogram of the data. Hint the year is not used, you need to determine how many years fall into each of the classes.

(7) What are your thoughts on the time series plot, i.e. trends etc.?

(8) Thoughts on the histogram i.e. shape of distribution etc.?

[Excel sheet]

a) Using the 1949 oil price and the 1969 oil price, compute the annual growth rate in oil prices during the 20 yr period. b) Compute the growth rate between 1969 & 1989 and between 1989 & 2017. c) given the price in 2017 and your growth rate between 1989 and 2017 compute the future price of oil in 2020 & 2025.

Thalidomide is a tranquilizer that was prescribed in the late 1950’s and early 1960’s to pregnant women, with the devastating result of over 12,000 birth defects in 48 countries before it was banned in 1962. (It was never sold in the United States.) Since then, the drug has reappeared as a possible solution to a number of medical problems. The U.S. National Institutes of Health announced on 31 October 1995 the results of a study in 30 hospitals of the effectiveness of thalidomide in healing mouth ulcers in AIDS patients. In the study, which was chaired by Dr. Jeffrey Jacobson of the Bronx Veteran Affairs Medical Center and the Mount Sinai School of Medicine in New York, it was found that 14 out of 23 patients who received thalidomide had their ulcers heal compared to 1 out of 22 patients who received a placebo. As a result of these early trial outcomes, the researchers suspended the trial giving thalidomide to all the patients in the study. THIS IS ALL THE INFO GIVEN.

1. Find a 90% confidence interval for the difference in proportion of healing assuming that both samples are simple random samples and independent of each other.
2. Conduct the appropriate large-sample test of significance. Discuss your results and compare your conclusion with the decision of the researchers.
3. By hand, draw a bar graph depicting the sample proportions of healing. Add a whisker to the top of each bar to denote the standard error of the sample proportion.  DO NOT SUBMIT.
4. Examine the bar graph you produced for part (a). Briefly comment on whether there appears to be a difference in proportions.
5. Conduct the appropriate hypothesis test for a two-by-two contingency table and report the P-values for Fisher’s exact test and the asymptotic chi-square distribution approximation for this test. Compare these results with your answer to part (b) in Exercise 1.

The global marketplace has witnessed an increased pressure from customers and competitors in manufacturing as well as service sector (Basu, 2001; George, 2002).Due to the rapidly changing global marketplace only those companies will be able to survive that will deliver products of good quality at cheaper rate and to achieve their goal companies try to improve performance by focusing on cost cutting, increasing productivity levels, quality and guaranteeing deliveries in order to satisfy customers (Raouf, 1994).

Increased global competition leads the industry to increasing efficiency by means of economies of scale and internal specialization so as to meet market conditions in terms of flexibility, delivery performance and quality (Yamashina, 1995). The changes in the present competitive business environment are characterized by profound competition on the supply side and keenindecisive in customer requirements on the demand side. These changes have left their distinctive marks on the different aspect of the manufacturing organizations (Gomes et al., 2006). With this increasing global economy, cost effective manufacturing has become a requirement to remain competitive.

To meet all the challenges organizations try to introduce different manufacturing and supply techniques. Management of organizations devotes its efforts to reduce the manufacturing costs and to improve the quality of product. To achieve this goal, different manufacturing and supplytechniques have been employed. The last quarter of the 20th century witnessed the adoption of world-class, lean and integrated manufacturing strategies that have drastically changed the way manufacturing firm’sleads to improvement of manufacturing performance (Fullerton and McWatters, 2002).

1. Due to COVID 19 emergency do you thinkagile supply chain is the right concept in this kind of situation? Give reason with example.

Critical Thinking

The global marketplace has witnessed an increased pressure from customers and competitors in manufacturing as well as service sector (Basu, 2001; George, 2002).Due to the rapidly changing global marketplace only those companies will be able to survive that will deliver products of good quality at cheaper rate and to achieve their goal companies try to improve performance by focusing on cost cutting, increasing productivity levels, quality and guaranteeing deliveries in order to satisfy customers (Raouf, 1994).

Increased global competition leads the industry to increasing efficiency by means of economies of scale and internal specialization so as to meet market conditions in terms of flexibility, delivery performance and quality (Yamashina, 1995). The changes in the present competitive business environment are characterized by profound competition on the supply side and keenindecisive in customer requirements on the demand side. These changes have left their distinctive marks on the different aspect of the manufacturing organizations (Gomes et al., 2006). With this increasing global economy, cost effective manufacturing has become a requirement to remain competitive.

To meet all the challenges organizations try to introduce different manufacturing and supply techniques. Management of organizations devotes its efforts to reduce the manufacturing costs and to improve the quality of product. To achieve this goal, different manufacturing and supplytechniques have been employed. The last quarter of the 20th century witnessed the adoption of world-class, lean and integrated manufacturing strategies that have drastically changed the way manufacturing firm’sleads to improvement of manufacturing performance (Fullerton and McWatters, 2002).

Consult chapter 7 of your text book or secondary available data on internet and answer the following questions.

Question:

1. Assess the reasons for using lean thinking (suitable examples),what are the benefits from Suppliers to end users?

The global marketplace has witnessed an increased pressure from customers and competitors in manufacturing as well as service sector (Basu, 2001; George, 2002).Due to the rapidly changing global marketplace only those companies will be able to survive that will deliver products of good quality at cheaper rate and to achieve their goal companies try to improve performance by focusing on cost cutting, increasing productivity levels, quality and guaranteeing deliveries in order to satisfy customers (Raouf, 1994).

Increased global competition leads the industry to increasing efficiency by means of economies of scale and internal specialization so as to meet market conditions in terms of flexibility, delivery performance and quality (Yamashina, 1995). The changes in the present competitive business environment are characterized by profound competition on the supply side and keenindecisive in customer requirements on the demand side. These changes have left their distinctive marks on the different aspect of the manufacturing organizations (Gomes et al., 2006). With this increasing global economy, cost effective manufacturing has become a requirement to remain competitive.

To meet all the challenges organizations try to introduce different manufacturing and supply techniques. Management of organizations devotes its efforts to reduce the manufacturing costs and to improve the quality of product. To achieve this goal, different manufacturing and supplytechniques have been employed. The last quarter of the 20th century witnessed the adoption of world-class, lean and integrated manufacturing strategies that have drastically changed the way manufacturing firm’sleads to improvement of manufacturing performance (Fullerton and McWatters, 2002).

Consult chapter 7 of your text book or secondary available data on internet and answer the following questions.

1. Assess the reasons for using lean thinking (suitable examples),what are the benefits from Suppliers to end users?

Based on the criteria used by the Bureau of Labor Statistics (BLS), identify each person’s status as employed, unemployed, “not in the labor force” (if not in the civilian labor force but still part of the adult population), or “not in the adult population” if not in the civilian adult population. Person Status Lorenzo is a 75-year-old professor. He teaches only one or two courses a year, but he's still pursuing an active research agenda. Neha is a 36-year-old autoworker who was just laid off by her employer. She is trying to find any kind of job to help make ends meet. Sam is a 41-year-old graphic designer who is taking 2 years off from work to care for his small daughter. Beth is a 29-year-old who lost her job as an associate producer for a radio station. After spending a few weeks out of work and interviewing for several other positions, she gave up on her job search and decided to go back to grad school. She made that decision a few months ago. Andrew is a famous novelist. He is spending the summer at his lake house in upstate New York, doing a little writing each day but mostly spending his time gardening and reading. Teresa is a 11-year-old student at West Valley Middle School. She babysits her younger sister and does other chores, so her parents give her an allowance of $20 per week. Complete the right half of the following equation to reflect the labor force participation rate reported by the BLS. Labor Force Participation Rate = According to this formula, what is the labor force participation rate of this economy of six people? 33.33% 40% 50% 60% Complete the right half of the following equation to reflect the unemployment rate reported by the BLS. Unemployment Rate = According to this formula, what is the unemployment rate of this economy of six people? 33.33% 40% 50% 60%

1. Suppose the industry of all farms planting beans is now in a perfectly competitive longrun equilibrium, and all farms have zero fixed cost for planting. Recent regulation in the market of fertilizers raises the price of bean fertilizer and therefore the marginal and average costs of all the farms in this industry. Note that marginal and average cost curves both experience a parallel shift up by the same amount. Please use a graphic tool to analyze the following changes to each individual farm and to the entire industry:

(a) (8 points) Set up a diagram, for both individual firms and the industry, to show the longrun equilibrium before the fertilizer shortage. Clearly mark the market price (p), individual supply (q), and the industry supply (Q).

(b) (12 points) Suppose the fertilizer shortage takes place but the price for beans has not yet adjusted accordingly (no entry or exit either). How much will each existing farm produce (mark your answer as q1 on the same graph) and how much profit or loss are they getting (make with a shaded area on your graph)?

(c) (16 points) As time goes by, will this industry experience any entry or exit? How will the price start to adjust? Explain your answer. Mark on your graph the new long-run industry supply, the new equilibrium market price (p’), the new individual supply (q’), and the new industry supply (Q’).

2. Suppose one Japanese firm and one American firm dominate the US market of widgets. They share the same cost structure: TC = 250 + 40q. The only demand for widgets is in the US and is p = 100 – Q.

(a) (16 points) If these two firms compete in quantity at the same time, what is the Cournot equilibrium output, price, profit level by each firm?

(b) (12 points) Suppose the American firm acquires the Japanese firm and therefore becomes a monopoly in this market. Calculate the monopoly’s output, price, and Lerner Index. How much is the deadweight loss due to monopoly behavior?