week 5

Week 5 Discussion HMGT 400

· Specific Rules for Discussions

1.Each post must be at least 130 words long or it receives no credit. Only the first initial postings    and the first response postings meeting the 130-word requirement will be graded.

2.The initial posting must be submitted by Thursday night at 11:59 pm EST. The response’s     postings are due Sunday night at 11:59 pm.

3. First Initial & response’s postings must include at least two references – one internal (course readings, course modules, primers,     webliography, etc.) and one external (other authoritative sources beyond our course material)

Note: No wiki or blog references

Topic:

Discussion 5: Research Methods and Techniques, Part 2

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Discussion 5:

PART A: Research Methods and Techniques, Part 2 In last week we discussed research techniques, this week discussion focuses on the other aspects of research, please pick up one of the following areas and discuss: 1) Different types of bias in research and discuss. 2) Experimental and Non-Experimental Research 3) Distinguishing between a Sample and a Population and then compare at least two sampling methods (e.g. random sampling vs. stratified random sampling or convenience and quota sampling methods? 4) What specific steps would you have taken to obtain a representative sample?

PART B: Week-5: Exercise

Exercise: Determining the sample size and ANOVA

1) Let us consider the question of how large the sample size should be to obtain an estimate of a population proportion at a specified level of precision.

In a survey the planning value for the population proportion p is 0.35.

How large a sample should be taken to provide a 95% confidence interval with a margin of error of 0.05 (Click here to see the Formula).

2) Use the following data and calculate F-test using ANOVA one-way in excel (Click  on ANOVA  to see an Example in an Excel file) and attach your response or excel file with your post.

You can copy this  or download TABLE  from here. See more details here LINK)

 

Table 2: Data for Height for four groups of children <5years

ID	A	B	C	D
1	60	79.2	72	85.5
2	81	95	78.2	94.5
3	78	70.7	80	57
4	76	57.5	87	71
5	71	55.5	67	67.8
6	67	85.3	85	72.7
7	53.5	71.4	92	75.8
8	45.5	63	73	66.9
9	81	95	53.5	71.4
10	78.2	94.5	45.5	63

True