Requirements: Average
Question One
Apply the chi-square for this scenario:
An opinion poll surveyed a simple random sample of 1000 students. Respondents were classified by gender (male or female) and asked if she/he smoked. Results are shown in the contingency table below:
Is there any relationship between the gender type and smoking? Use a 0.05 level of significance.
Note: calculate the expected value, then calculate the chi-square.
Answer:
Question Two
What is Data Reduction? Provide a list of strategies associated with it? Explain one of them with an example?
Answer:
Question Three
Briefly compare the features of following concepts: Snowflake schema, fact constellation and star schema. Support your answer by illustrating examples.
Answer:
Question Four
Apply the Apriori algorithm for following Database to find the which itemset are satisfy the minimum support = 3, then explain or highlight the result
Answer:
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