Statistics and data analysis for nursing research 2nd edition test bank by polit download

Statistics And Data Analysis For Nursing Research 2nd Edition Test Bank by Polit MULTIPLE CHOICE.. Choose the one alternative that best completes the statement or answers the question.

Statistics And Data Analysis For Nursing Research 2nd

Edition Test Bank by Polit

MULTIPLE CHOICE Choose the one alternative that best completes the statement or

answers the question

1) A major purpose of constructing a frequency distribution with sample

data is to:

A) Estimate a population parameter

B) Get experience with statistical software

C) Get an organized view of an entire set of scores

D) Test a research hypothesis

1) _

2) In a frequency distribution, the two key informational components are: 2) _ A) A horizontal (X) axis, a vertical (Y) axis

B) Frequencies (f), percentages (%)

C) Score values (X), frequencies (f)

D) Participant ID number (id), score values (X)

3) In a frequency distribution, which of the following is true? 3) _

A) Σ f = % B) Σ f = N C) Σ N = f D) Σ N = %

4) In the equation Σ % = 100.0, the symbol Σ signifies: 4) _ A) The sum of B) A data value

C) A frequency D) A percentage

5) In a frequency distribution, percentages are sometimes called: 5) _ A) Proportions B) Cumulative proportions

C) Relative frequencies D) Relative proportions

6) Data for which of the following variables is most likely to be presented 6) _

in a grouped frequency distribution?

A) Nursing specialty area B) Daily cholesterol intake

C) Number of pets owned D) Number of abortions

7) The level of measurement for data appropriately presented in a bar 7) _ graph is:

A) Nominal or ordinal B) Nominal only

C) Interval only D) Interval or ratio

8) In a frequency distribution graph, frequencies are typically presented on 8) _ the and data values are presented on the (Fill

in the blanks.)

A) axis, N axis B) X axis, Y axis

C) Y axis, X axis D) N axis, f axis

9) Which of the following sets of data is not unimodal? 9) _ A) 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 5, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9

B) 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 4, 5

C) 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 4, 5, 5, 5, 5, 5, 5, 5, 5

D) 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4

10) Which of the following variables is most likely to be negatively skewed

in a general population?

A) Number of times married B) Number of times arrested

10)

C) Age at birth D) Age at retirement

11) A normal distribution is not: 11) A) Leptokurtic B) Platykurtic

C) Skewed D) All of the above

A) A code for which there is a very high frequency

B) A value that is impossible given the coding scheme

C) A code for which there is a very low frequency

D) An outlier or high value

Table 2

Number of

13) In Table 2, the variable is and the measurement level is 13) (Fill in the blanks.)

A) Discrete, interval B) Continuous, ratio

C) Continuous, interval D) Discrete, ratio

14) Table 2 is an example of a: 14)

A) Grouped frequency distribution

B) Data matrix

C) Frequency distribution

D) Class interval

15) In Table 2, the value of N is: 15) A) 215 B) 100.0 C) 7 D) 24

16) In Table 2, the cumulative relative frequency for five or fewer 16) pregnancies is:

A) 92.5 B) 199 C) 210 D) 97.6

17) The best way to graph information in Table 2 would be to construct: 17) A) Either a pie chart or a bar graph

B) A histogram

C) A bar graph

D) A pie chart

18) In Table 2, the distribution of data would be described as:

A) Negatively skewed B) Positively skewed

C) Symmetric D) It cannot be determined

18)

19) In Table 2, the distribution of data would be described as: 19) A) Bimodal B) Unimodal

C) Multimodal D) It cannot be determined

20) In Table 2, the most likely number to be an outlier is: 20)

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1) C

2) C

3) B

4) A

5) C

6) B

7) A

8) C

9) C

10) D

11) D

12) B

13) D

14) C

15) A

16) D

17) B

18) B

19) B

20) C