Please answer the questions in the PDF. This is a research and in international Business and the Global Market class. If it is required I can provide text if necessary.

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Problem Set 1 IBUS 620 Research Methods in International Business
Possible points: 100. Scores are divided by 10 to get a final score out of 10 possible.
Show all your work clearly.
1. 10 Points. Write the following thought as a testable hypothesis (call it H1): Countries
that have many international taxation treaties with other countries have more
multinational firms making their headquarters there than countries with fewer
international taxation treaties with other countries.
2. 10 Points. How would you operationally measure the extent/degree to which Japanese
people like ice cream? Give an example of how you would measure this.
3. 7 Points, 1 Point each. Consider this data set of SFSU professor evaluations: 2, 3, 5,
3, 1, 2, 2, 2, 1, 2
a) What is the n of this data set?
b) What is the mean of the data?
c) What is the median?
d) What is the mode?
e) Which measure of central tendency would you choose to use to get the most
accuracy and why?
f) Is there a possible issue with the data itself? If so, what is it? Does it affect
your choice of central tendency measure from e)?
g) Would you take this Prof.’s class? Why or why not?
4. Calculate the standard deviation of the dataset above (3 Points). Comment on its
meaning (6 Points). 9 Points total possible Q4.
5. Identify a numerical data element (e.g., respondent age, country size in sq. km,
something else). 20 Points total, 5 Points each.
a) Construct intervals to group the data (Salkind Ch 4). State the intervals (e.g., 1‐5, 6‐10,
b) Gather 15 real data points from a source of data. Be creative, but do not make up the
data—gather it! List the data sample and state from where you gathered it.
c) Construct a histogram below showing the distribution of intervals in your data sample.
OK to use a separate page if needed.
d) Comment on your histogram. Identify any skewedness. Can you say anything about
the sample’s central tendency?
6. 20 Points, 10 Points each. From the following data,
a) Calculate the Pearson Correlation Coefficient (r):
Incidence of Police Brutality
Number of McDonald’s in Country per 10000 inhabitants
b) Interpret this correlation in plain English. Choose your words carefully.
7. Hypothesis writing 24 Points, 8 points each.
a) Give an example of a null hypothesis
b) Based on the null hypothesis in a), state a non‐directional research hypothesis.
c) Using the same hypothesis in a) as a basis, state a directional research

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