2. Choose a variable that will permit the use of dependent samples. Mean heights
ID: 3221835 • Letter: 2
Question
2. Choose a variable that will permit the use of dependent samples.
Mean heights of a group of children in Kalama, an Egyptian village that is the site of a study of nutrition in developing countries. The data were obtained by measuring the heights of all 161 children in the village each month over several years.
Number of cases: 12
Variable Names:
Age: Age in months
Height: Mean height in centimeters for children at this age
The Data:
a. Write a brief statement of the purpose of the study.
b. Define the population.
c. State the hypotheses for the study.
d. Select an value (level of significance).
e. State how the sample was selected.
f. Show the raw data.
The Data:
the test statistic (z or t). Why is the test appropriate?
h. Find the critical value(s).
i. State the decision.
j. Summarize the results.
Explanation / Answer
Dear student,
As per Chegg guidelines only the first four subparts are answered.
a,PURPOSE OF STUDY:
To study the correlation between age and height of children in developing countries.
b,POPULATION:
The children of all the developing countries that are site of studies for nutrition form the population of our experiment.
c,HYPOTHESIS:
H0: There is no correlation between the age and the height of children in developing countries.
VS
H1: There is a correlation between te age and the height of children in developing countries.
d,LEVEL OF SIGNIFICANCE:
We can select the level of significance as 1%,5%,10% depending on the threshhold of error that can be afforded.
Here, we select 5% as the level of significance.
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