Question

1. A bar chart is most likely used to display which of the following?

Select one:

a. Either B or C

b. A nominal level variable

c. A continuous variable

d. An ordinal level variable

2.A consumer products company wants to interview customers regarding a new product. If it wishes to adhere to a predetermined pattern of questions in the interview, which of the following would likely be used?

Select one:

a. Written questionnaire

b. Unstructured interview

c. Open-end questioning

d. Structured interview

3.A professor wants to know if the amount of time her students spent working on a statistics assignment relates to the grade the student receives. She surveyed 10 students and recorded the data below. Which of the following statements is most correct?

# 1	# 2	# 3	# 4	# 5	# 6	# 7	# 8	# 9	# 10
5	3	3.5	1	4.5	1	3	4	2	2.5
90	80	80	60	90	70	75	85	70	75

Select one:

a. A line chart for these data will show a trend between the student number and the grade received.

b. A histogram will illustrate whether a linear relationship exists between the number of hours studied and the grade received.

c. A scatter diagram would be useful for displaying a relationship between the number of hours studied and the grade received.

d. None of the above

4.A value computed from a population is called:

Select one:

a. a real number.

b. a point estimate.

c. a statistic.

d. a parameter.

5. Data collected at a fixed point in time are:

Select one:

a. cross-sectional data.

b. approximate time-series data.

c. panel data.

d. time-series data.

Answer 1

1. A bar chart is most likely used to display which of the following?

Either B or C

2.A consumer products company wants to interview customers regarding a new product. If it wishes to adhere to a predetermined pattern of questions in the interview, which of the following would likely be used?

Structured interview

3.A professor wants to know if the amount of time her students spent working on a statistics assignment relates to the grade the student receives. She surveyed 10 students and recorded the data below. Which of the following statements is most correct?

A scatter diagram would be useful for displaying a relationship between the number of hours studied and the grade received.

4.A value computed from a population is called:

d. a parameter.

5. Data collected at a fixed point in time are:

cross-sectional data.