Assignment - Research Design and Analysis

Reference no: EM132580166

Assignment - Research Design and Analysis

Part 1 - Researchers were interested in the relationship between the proportion of smokers in a country in 1930 and the number of deaths (in males) per million from lung cancer in 1950. The researchers predict a positive relationship between the two variables. The raw data can be found in the table below.

Country	Mean yearly cigarette consumption (1930)	Male death rate (per million) from lung cancer (1950)
Iceland	240	60
Norway	250	90
Sweden	310	120
Denmark	370	160
Australia	450	160
Holland	450	240
Canada	500	150
Switzerland	530	250
Finland	1110	350
Great Britain	1130	460
United States	1280	190

Table - The mean yearly consumption of cigarettes in 1930 and the deaths from lung cancer in 1950 in males in 11 countries.

What type of research design is this study?

Name the variables in this study.

Formally state the Research Hypothesis (H₁) for this study.

Create a scatterplot to explore the relationship between the two variables.

Conduct an appropriate inferential test of the null hypothesis.

Fully describe the details of the inferential test used.

What conclusion can you come to?

Give the statistical justification for this conclusion.

Part 2 - A researcher had heard that there appeared to be a larger proportion of female students that smoked compared to males. She decided to compare the proportions of male and female smokers.

	Male	Female
Smoker	17	35
Non-Smoker	27	25

Name type of design used in this study and describe the level of measurement of the data.

Name the variables under investigation.

Produce a contingency table of descriptive statistics for this study using Word.

State an appropriate Research Hypothesis for this study:

Conduct an appropriate inferential test of the null hypothesis.

Fully describe the details of the inferential test used.

What conclusion can you come to?

Give the statistical justification for this conclusion.

Reference no: EM132580166

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