Conduct a hypothesis testing, Applied Statistics

Celia is a nurse in a geriatric ward.  She noticed that older persons in her care are having problems sleeping at night.  She decided to introduce non-pharmocologic ways of relaxation, specifically, music therapy, massage therapy and aromatherapy.  The results below show the number of hours of uninterrupted sleep of the older persons after each intervention.

Older Person#

Music therapy

Massage therapy

Aromatherapy

1

8

10

6

2

6

12

7

3

7

8

8

4

9

9

7

5

8

9

7

6

8

9

6

7

7

8

5

8

6

10

6

9

5

9

8

10

6

6

7

11

7

8

7

12

8

9

4

13

10

12

5

14

8

8

6

15

9

9

6

Questions

 

  1. What do you think is the appropriate sampling technique?  Justify your answer. (1 point)

 

Conduct a hypothesis testing if she were comparing music and aromatherapy.  Show the step-by-step process of hypothesis testing including the choice of statistical test. Be guided by the examples in your N298  module (6 points)

  • Null and alternative hypotheses
  • Level of significance
  • Test-statistic
  • Critical region
  • Computation of test-statistic
  • Decision
  • Conclusion

Conduct a hypothesis testing if she were comparing the three relaxation techniques.  Show the step-by-step process of hypothesis testing including the choice of statistical test. Be guided by the examples in your N298  module  (6 points)

  • Null and alternative hypotheses
  • Level of significance
  • Test-statistic
  • Critical region
  • Computation of test-statistic
  • Decision
  • Conclusion

Write your conclusion and recommendations for the study after knowing the results of the hypotheses testing?

Posted Date: 2/28/2013 3:19:11 AM | Location : United States







Related Discussions:- Conduct a hypothesis testing, Assignment Help, Ask Question on Conduct a hypothesis testing, Get Answer, Expert's Help, Conduct a hypothesis testing Discussions

Write discussion on Conduct a hypothesis testing
Your posts are moderated
Related Questions

We want to investigate the income data.  In the Excel file Midterm  Data.xls there is a tab labeled "Income Data 2006".  The data in the tab is the income reported by 400 people in

Construct your initial multivariate model by selecting a dependent variable Y and two independent variables X. Clearly define what each variable represents and how this relates t

The PCA is amongst the oldest of the multivariate statistical methods of data reduction. It is a technique for simplifying a dataset, by reducing multidimensional datasets to lower

Determine the maximum weight in kN to one decimal point (1 DP) of the engine that can be supported without exceeding the tension given in  Parameter 1 (P1) in chain AB or 1.1 x P1

Systematic Sampling In Systematic Sampling each element has an equal chance of being selected, but each sample does not have the same chance of being selected. Here,

Definition of Central Tendency The central tendency of a variable means a typical value around which other values tend to concentrate which can be measured. Such concentration


The calculations of arithmetic mean may be simple and foolproof, but the application of the result may not be so foolproof. An arithmetic mean may not merely lack

what is the aim of statistics?