Students in the experimental group learned via the use of VLE while those in the control group learned under the conventional “chalk and talk” method. The study involved 250 students from two schools in Kuala Lumpur.
- Generate a frequency count and histogram with normal distribution curveforPretest mathematics scores. Describe the frequency count and normal distribution curve.
- Generate a frequency count and bar chart to show the distribution of Family Income classification. Describe the frequency distribution output.
- What is random sampling? Using the HMEF5113 Dataset for Assignments 1 & 2 September 2021.sav, create a random sample comprising 100 cases from the 250students who participated in this experimental research. Using this random sample of 100 cases, the frequency procedure shows the distribution by Gender.
- Using the Posttest variable, create an ordinal-type variable with the following categories: (i) 20 marks and below, (ii) 21 to 40 marks, (iii) 41 to 60 marks, (iv) 61 to 80 marks, and (v) 81 marks and above. Show a frequency distribution table of the newly created ordinal-type Posttest category variable. Describe the frequency distribution table.
- Using the Pretest variable of students who participated in the experimental study, compute the following measures of central tendency: (i)Mean, (ii) Median, and (iii) Mode and the measures of a dispersion comprising (i)Range, (ii) Variance, and (iii) Standard deviation. Describe the output for measures of central tendency and measures of dispersion.
- Run a crosstabulation between the Gendervariable and the Posttest Category variable. Describe the crosstabulation findings.
- Run an exploratory data analysis of the Pretest and Posttestvariables. Describe the exploratory data analysis output.
- Describe how you would go about addressing missing values in a dataset when respondents failed to fill up their responses.
- Discuss the differences between parametric statistics and non-parametric statistics.
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