Saint GBA 334 Unit 1 Quiz

Question: #627

Describe the "envelope”, seal, and the early Mesopotamian writing process. Identify the issue being kept "on file,” and comment on what this reveals about Mesopotamian society and the primary ways it compares to modern society in these respects.

Solution: #645

Saint GBA 334 Unit 1 Quiz

Question 1. 1.

A production process is known to produce a particular item in such a way that 5 percent of these are defective. If two items are randomly selected as they come off the production line, what is the probability that both are defective (assuming that they are independent)?

0.0100

0.1000

0.2000

0.0025

0.0250

Question 2. 2.

Which distribution is helpful in testing hypotheses about variances?

binomial distribution

F distribution

normal distribution

Poisson distribution

exponential distribution

Question 3. 3.

At a university with 1,000 business majors, there are 200 business students enrolled in an introductory statistics course. Of these 200 students, 50 are also enrolled in an introductory accounting course. There are an additional 250 business students enrolled in accounting but not enrolled in statistics. If a business student is selected at random, what is the probability that the student is enrolled in statistics?

0.05

0.20

0.25

0.30

None of the above

Question 4. 4. The number of cars passing through an intersection in the next five minutes can usually be described by the (Points : 4)

normal distribution.

uniform distribution.

exponential distribution

Poisson distribution.

None of the above

Question 5. 5.

At a university with 1,000 business majors, there are 200 business students enrolled in an introductory statistics course. Of these 200 students, 50 are also enrolled in an introductory accounting course. There are an additional 250 business students enrolled in accounting but not enrolled in statistics. If a business student is selected at random, what is the probability that the student is either enrolled in accounting or statistics, but not both?

0.45

0.50

0.40

0.05

Question 6. 6.

The number of phone calls coming into a switchboard in the next five minutes will either be 0, 1, 2, 3, 4, 5, or 6. The probabilities are the same for each of these (1/7). If X is the number of calls arriving in a five-minute time period, what is the mean of X?

2

3

4

...