Câu hỏi: The interval scale possesses all of the below properties, except:

A. Order

B. Distance

C. Origin

D. All of the above

Câu 1: Suppose that a researcher wanted to obtain an estimate of realised (“actual”) volatility. Which one of the following is likely to be the most accurate measure of volatility of stock returns for a particular day?

A. The price range (high minus low) on that day

B. The squared return on that day

C. The sum of the squares of hourly returns on that day

D. The squared return on the previous day

Câu 2: What would typically be the shape of the news impact curve for a series that exactly followed a GARCH (1,1) process?

A. It would be asymmetric, with a steeper curve on the left than the right

B. It would be asymmetric, with a steeper curve on the right than the left

C. It would be symmetric about zero

D. It would be discontinuous about zero

Câu 3: The process of marketing involves all of the following EXCEPT:

A. Product

B. Production

C. Pricing

D. Distribution

Câu 4: Which among the following is not a noncomparative scaling technique?

A. Likert

B. Stapel

C. Semantic differential

D. Rank order

Câu 5: Khi mô hình có Phương sai sai số thay đổi thì?

A. Ước lượng bình phương nhỏ nhất là ước lượng tuyến tính không chệch và là ước lượng hiệu quả

B. Kiểm định T và F vẫn tin cậy

C. Ước lượng phương sai là ước lượng không chệch

D. Ước lượng phương sai là ước lượng chệch

Câu 6: Executive summary should involve all of the following, except:

A. Why and how the research was carried out

B. What was done to manage fieldworkers

C. What was found

D. What can be interpreted and acted upon by the manager