QAB105: Business Research Methods - Sampling Methods - Management Assignment Help

Assignment Task:

Task:

A researcher wants to examine whether exam marks for undergraduate statistics units are influenced by how much time the students spend in studying statistics units during the semester. The researcher also wants to compare the results across gender and age groups. For this purpose, the researcher plans to survey a sample of undergraduate level students who studied statistics last semester. Using a maximum of 200 words for each part (Parts 1 to 4), answer the following questions.
 

Part 1(200 words) [4 marks]

(a) Suggest a suitable survey method the researcher should use and explain why you suggest such a method.

(b) Suggest a sampling method the researcher should use to select his/her sample and explain why you suggest such a method.

(c) Discuss any issues the researcher may face in his/her data collection? Suppose the researcher collected data from 110 respondents. For each respondent, the number of hours spent on studying statistics for 2 weeks period and the exam marks were recorded. The data are stored in the file Assignment 2 Dataset.XLS sheet available in the Written Assignment folder. Using this data and EXCEL, answer the questions below.

Part 2 (200 words) [12 Marks]

The researcher wishes to use graphical descriptive methods and numerical descriptive measures to present the data for the two variables in various summary forms.
(a) The researcher decides to use 7 class intervals, such as 0<X≤15, 15<X≤30, ..... for the Exam mark variable and 0<X≤2, 2<X≤4, ....., for the study time variable. Explain how he/she could have decided on the number of class intervals as 7.

(b) Draw two histograms for the two variables using appropriate BIN values.

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