Blackgold Coal: Then and Now

In the early 1990s, Blackgold Coal, the largest Australian producer of premium-quality coal, mainly exported to China. Despite being the largest producer of coal, Blackgold still struggled to fulfil Chinese coal demand. However, in the late 1990s, the demand for coal in China dramatically dropped due to China’s rapid industrialisation that instead began relying on alternative power sources. This reduced demand from China caused Blackgold to make losses from its main market base. To add to this, all coal miners in Australia have been facing bans on mining expansion at home due to its environmental impacts. Hence, Blackgold explored the alternative markets and began to export to Asia, Africa, the Middle East and Latin America, which were still using coal as a prime power source for their industrialisation.

Blackgold’s strategy to diversify their coal markets paid off. By the late 1990s its revenue increased by 200% because of demand for its high-quality coal. Multinational operations, however, meant that Blackgold has faced increasingly fierce competition from other coal-rich countries since the mid-2000s. In response, Blackgold acquired the largest coal producers in Asia and Africa, entered into long-term trade deals with its major Asian and the Middle Eastern buyers by cutting prices, and entered into joint venture and strategic alliances in Latin America. Price cuts were possible because of cheap labour in Asia and Africa and the coal mines that were newly discovered by Blackgold in Africa and Latin America. Blackgold benefitted from its overseas production base as well as increased demand for premium-quality coal. By 2010, Blackgold became the number one coal producer around the world and was undefeated by its competitors, but succumbed to the protests from environmentalists around the world. In response, today Blackgold has to spend on the garden restoration, reforestation and afforestation, skill development, employee well-being and local community development.

After reading this case, you are required to answer the following questions:

i) What were Blackgold’s reasons for going global and what key factors have contributed to globalisation?

ii) Has Blackgold received any benefit from its global operations, if so, what are those?

ii) Has Blackgold faced any threat from its global operations, if so, what are those?

Use repetitions to solve it. Don't simplify answer

(1) 20 different comic books will be distributed to five kids. How many ways are there to distribute the comic books if they are divided evenly so that 4 go to each kid?

(2) A family has four daughters. Their home has three bedrooms for the girls. Two of the bedrooms are only big enough for one girl. The other bedroom will have two girls. How many ways are there to assign the girls to bedrooms?

(3) A camp offers 4 different activities for an elective: archery, hiking, crafts and swimming. The capacity in each activity is limited so that at most 35 kids can do archery, 20 can do hiking, 25 can do crafts and 20 can do swimming. There are 100 kids in the camp. How many ways are there to assign the kids to the activities?

(4) A school cook plans her calendar for the month of February in which there are 20 school days. She plans exactly one meal per school day. Unfortunately, she only knows how to cook ten different meals. How many ways are there for her to plan her schedule of menus for the 20 school days if there are no restrictions on the number of times she cooks a particular type of meal?

P_1

Which of the following research situations would be most likely to use a between subjects research design?

A. .Examining ethnic differences in reading comprehension among middle school children.

B. Investigating the long-term effectiveness of a stop-smoking treatment by comparing participants
craving for cigarettes after 2 months and 6 months of treatment.

C. Examining academic performance of the Texas State University students by comparing their mean GPA to the national average GPA of undergraduate population in the U.S.

D. All of the above.

P_2

For which of the following situations would a repeated-measures research design be appropriate?

A. Comparing self-esteem for students who participate in school athletics versus those who do not.

B. Comparing mathematical skills of girls versus boys in elementary school age.

C. Comparing patients’ body temperature at the beginning and at the end of medical treatment

D. Comparing verbal skills of science majors versus art majors among undergraduate students

P_3

The t-test for independent sample can be used to examine ____________.

A. The mean difference between two treatment conditions in an experiment (e.g. a difference in performance of experimental group and control group).

B. The mean difference between two populations in quasi-experimental designs (e.g., mean difference in
attitudes to abortion between residents of the southern vs. northern states in the U.S.).

C. The mean difference in stress level at the beginning and the end of semester in a sample of undergraduate students.

D. A & B

E. All of the above.

1. In clinical and developmental terms, adolescents are super-learners. They seek thrilling experiences at the edge of existing knowledge. When adults create new opportunities while setting clear boundaries, adolescents are more likely to stay within safe limits. This is the truth, and it must replace the myth that adolescents are wired for risk. Question? Based on your understanding of development, why should nurses explain to parents the difference between myth and reality regarding adolescent behavior(s)? Explain.

2. We know that teenage pregnancy, sexually transmitted diseases, and the emotional trauma of sexual abuse are serious concerns. So, how can we as parents help maturing young girls cope with their confusing sexual feelings as well as the impact that their appearance has on boys and men? Explain?

Students in a high school were asked whether good grades, athletic ability, or popularity was most important to them. A two-way table separating the students by gender and by choice of most important factor (factor) is shown below:

For the data above, do the following

1. Calculate the row and column totals
2. Calculate gender by factor percentages
3. Calculate factor by gender percentages
4. What is the test to be done to determine whether is an association between gender and factor?
5. What are the degrees of freedom for that test (show formula and calculation)
6. Create a table of expected frequencies
7. Create a table of c² values (calculate c²for each cell)
8. What is the total calculated c²?
1. From the chi-square table (https://www.medcalc.org/manual/chi-square-table.php) find the critical value of chi-square for the degrees of freedom in part e. of this question and for an alpha value of .05.
10. Compare the calculated and critical value of chi-square, what is your inference (state your null and alternate hypothesis and draw your inference.

Two-Way ANOVA Extra Credit Worksheet

PSYC2002C-007

A researcher wants to know whether TV time is related to amount of sharing for boys and girls. To test this, the researcher splits 24 boys and 24 girls into even groups to undergo conditions of no TV, 1 hour of TV, 2 hours of TV, and 3 hours of TV, then measures the number of times they shared toys or food with the other children in their group in an hour-long play-time afterwards.

The resulting data is shown below:

State the IV’s and the DV: __________________________________________________

What is the factorial notation for the ANOVA? _________________________________

Complete the following table and show your work for Sum of Squares calculations below:

Hint: To find significance, find F-crit for each.

SS_tot =

SS_bn =

SS_TV =

SS_gender =

SS_interaction =

SS_wn =

Was there an interaction effect between the TV time and gender? If so, interpret this effect.

Was there a main effect for TV time? If so, interpret this effect.

Was there a main effect for gender? If so, interpret this effect.

What had the largest effect size? Highlight/bold one of the following:

TV time

Gender

Interaction between TV time and gender

A random sample of 200 high school students in a particular town showed that 122 smoke on a regular basis. Find the 99% confidence interval estimating the population percentage for smokers at this high school.

To the right are the outcomes that are possible when a couple has three children. Assume that boys and girls are equally​ likely, so that the eight simple events are equally likely. Find the probability that when a couple has three​ children, there is exactly 1 girl.

1. In the Excel data file, the tab labeled Question 1 contains data on the number of times boys and girls raise their hands in class. Conduct the t-test: Two-Sample Assuming Equal Variances.
2. Males 9,8,4,9,3,8,10,8,9,10,7,6,12
3. Females 3,5,1,2,6,4,3,6,7,9,7,3,7,6,8,8

a. What is the null hypothesis?

b. What is the research hypothesis?

c. Why run a Two-Sample Assuming Equal Variances t-test?

d. Interpret the findings. What are the results of the hypothesis test? Can you reject the null hypothesis?