1. A study that often attempts to understand how variables are related to each other is referred to asAnswerA.explanatory studies.

B.inferential statistics.

C.descriptive statistics.

D.predictive studies.

2 points Question 21. When determining the class intervals in creating a relative frequency chart, it is important to remember each class must beAnswerA.limited in number.

B.broad in their width.

C.mutually inclusive.

D.mutually exclusive.

2 points Question 31. Which of the following is not a part of the research project that is used statistically?AnswerA.Collection of data

B.Organization of data

C.Interpretation of data

D.Peer review of data

2 points Question 41. Given below are the WBC (x 103cells/mcL) counts of all the patients who have taken antibiotics after being diagnosed with bacterial infection:9.6

5.7

8.4

9.8

11.3

9.8

7.2

7.2

Find Q3.Answer9.8

7.9

7.2

8.4

2 points Question 51. Given the data below, Respondent Number Blood Pressure BMI 1 Normal25.10 2 Low27.303 Low21.204High32.305Normal 23.206 High 24.80The best measure of variation for BMI isAnswerrange

coefficient of variation

standard deviation

quartile deviation

2 points Question 61. Find the mean weight (in lbs) of the randomly selected seven students of the Faculty of Pharmacy given below:103.12

150.75

135.64

157.58

198.12

155.35

198.12

Answer183.11

198.12

156.95

155.35

2 points Question 71. One response to the nursing shortage has resulted in the recruitment of nurses with various educational levels. The results of one research study found that the level of nursing education is critical in caring for certain patients. Therefore, we can conclude thatAnswerA.on-the-job training will provide adequate exposure to proper nursing techniques for all levels of patients.

B.proper mentoring will ensure the nursing staff is well prepared.

C.proper education results in better patient care.

D.increasing the number of nurses without concern for educational level has serious implications for critically ill patients.

2 points Question 81. Given below are the daily number of sleeping hours of six randomly selected students of each of the degree program of students of theFaculty of Pharmacy.PharmacyMedTechBiochem

6.58.57.5

7.56.55.5

6.06.55.0

5.06.58.0

8.26.07.0

5.85.06.0

Which group of students have more consistent (or more homogenous) daily number of hours of sleep?AnswerMedTech

Pharmacy

Biochem

can not be determined due to insufficient data

2 points Question 91. What is thebestmeasure of central tendency of the data given below, which are the WBC (x 103cells/mcL) counts of all the patients who have taken antibiotics after being diagnosed with bacterial infection:9.6

7.2

9.8

8.4

11.3

9.8

7.2

5.7

Answermean

median

mode

percentile

2 points Question 101. Given below are the WBC (x 103cells/mcL) counts of all the patients who have taken antibiotics after being diagnosed with bacterial infection:9.6

7.2

9.8

8.4

11.3

9.8

7.2

5.7

Find the variance.Answer1.83 (x 103cells/mcL)

1.72 (x 103cells/mcL)

3.36 (x 103cells/mcL)2

2.94 (x 103cells/mcL)2

2 points Question 111. Given the data below, Respondent Number Blood Pressure BMI 1 Normal25.10 2 Low27.303 Low21.204High32.305Normal 23.206 High 24.80The best measure of central tendency for BMI isAnswermean

mode

median

first quartile

2 points Question 121. The hypotheses of the study shouldAnswerA.state the expected relationship between the variables.

B.predetermine the study results.

C.be based on expert opinion.

D.be updated at the end of the study.

2 points Question 131. When defining a good research study, which of the following should be included?AnswerA.Statement of the problem

B.Description of the sample and how it was obtained

C.Description of the planned statistical analysis

D.The expected outcome

E.List of the hypotheses to be tested

2 points Question 141. Statisticians use various scales to collect and/or identify data. The following is an example of what type of scale?Pain Intensity

0No pain

1Minor/little pain

2Moderate pain

3Severe pain

AnswerA.Nominal scale

B.Interval scale

C.Ratio scale

D.Ordinal scale

2 points Question 151. Statistics use distinct symbols to represent specific information. Parameters are usually represented byAnswerA.lowercase Roman letters.

B.lowercase Greek letters.

C.lowercase Roman numerals.

D.lowercase English letters.