Get Quantitative Analysis in the Health Sciences essay assignment help

## Quantitative Analysis in the Health Sciences essay assignment

Quantitative Analysis in the Health Sciences essay assignment

- Any distribution of values may be completely and accurately described by presenting three pieces of information. What are those three pieces?

- What distinguishes a true experiment from a quasi experiment?

- What two inferences can be drawn from data collected from a sample?

- For the following hypothesis, what is the dependent variable: Nursing students who learn health assessment “on-site” receive higher scores on the NCLEX than nursing students who learn health assessment through a virtual, on-line course?

- In what form is the hypothesis in question #4 stated?

- For a research study in which the outcome of the intervention is measured as “optimal” vs. “sub-optimal,” what level of measurement is employed?

- If a distribution of scores has a mean of 65.5, a median of 77.8 and a standard deviation of 15, what is the shape of the distribution?

- What measures of central tendency and variability are appropriate in describing a multi-modal distribution shape?

Central Tendency: _____

Variability: ________

**Briefly **define each of the following:

** **

- Statistic:

- Frequency Polygon:

- Percentile:

- Ordinal Data:

** **

**Items 13-18 relate to a distribution having a mean of 100 and a standard deviation of 15. **

** **

- If this instrument is used to screen for pathological conditions and the highest 10% are screened as “presumptive positives”, what is the cut-off score for a positive screen?

- What percent of the general population would be expected to score between the raw scores of 90 and 110?

- If you used this instrument to provide relative rankings for students in terms of their scores, who would score higher, Student A with a z score of .70 or Student B with a raw score of 113?

- If you took the test as a preliminary measure of knowledge in differential diagnoses and received a score of 120, what percent of the population scored higher than you?

- If there were a certification exam in which the minimum passing score is 85, did Student A, who received a z score of -.67, pass the exam?

- If a researcher wished to study only the middle 50% of the population, above and below which raw scores should she exclude potential subjects?

- Organize the follow raw data into a frequency distribution:

15 15 16 16 16 17 17 17 17 17 18 18 19 19 19 20 20 21

- For the frequency distribution you prepared for item 19 (above), present the data as a histogram.

The remaining items relate to the following data:

*x* f

30 2

31 4

32 5

33 7

34 9

35 6

36 6

37 9

38 5

39 4

40 3

Provide the following statistical data:

- Mean: _____

- Median: _____

- Mode: _____

- Range: _____

- Variance: _____

- Standard Deviation: _____

- Q: _____

- Shape: _____

- Approximate measure of central tendency: _____

- Appropriate measure of variability: _____