Question

In the next set of questions (9 to 20), you will consider a situation and a variable Xand determine whether each of the four requirements of the binomial setting are met. If the binomial setting is not technically met, but is very nearly met (see the discussion on pages 65-66 of the Unit 6 notes), then you should still select True for the binomial setting requirement.

For questions 17 to 20:
Buy one soft drink every day for a week (7 days) during the annual Monopoly promotion at McDonald's. Each soft drink has a sticker on the cup that the customer checks to see if they have won an instant prize. It is known that one in five cups (20%) are winners.
X = number of times in one week that you win.

Question 17 (0.25 points)

There are a fixed number of observations, n.

Question 17 options:

	True
	False

Question 18 (0.25 points)

Each observation can be categorized as being either a success or a failure (two outcomes), and X counts the number of successes.

Question 18 options:

	True
	False

Question 19 (0.25 points)

The probability of success p is the same for each observation.

Question 19 options:

	True
	False

Question 20 (0.25 points)

Observations are independent. That is, success or failure on one observation doesn't affect the probability of success or failure for any other observation.

Question 20 options:

	True
	False

Answer 1

Ans:

17)True,there are a fixed number of observations,as n=7

18)True,as X=number of times customer won instant prize out of 7 days

19)True,the probability of success p is the same for each observation,as p=0.20

20)True,Observations are independent