Mathematics

Bradyn Cook

15 November, 09:16

An article reports that blue eyed people earn less than brown eyed people, with these numbers: average blue-eyed salary $35,000, average brown-eyed salary $37,000, p-value 0.45. Based on that reported p-value, and using the common definition of "statistical significance," which is the case?

a. The results are nowhere near to being statistically significant.

b. The results are almost but not quite statistically significant.

c. The results are just barely statistically significant.

d. The results are strongly statistically significant.

A group of 10 people is choosing a chairperson and vice-chairperson. They put all 10 people's names into a hat. The first name drawn becomes chair. The second name drawn becomes vice-chair. How many possible combinations of chair and vice-chair are there?

a. 19

b. 90

c. 100

d. 10! (10 factorial)