1) In each of these statements, tell whether descriptive or inferential statistics have been used

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1) In each of these statements, tell whether descriptive or inferential statistics have been used.

1. Financial analysts say that mortgage may soon hit bottom.

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2. The monthly average expenditures of per households is P10,000.00.

_______________________________________________________

3. The guard in the SM Megamall records the number of shoppers for the past 15 days.

______________________________________________________

4. The Philippine Regulation Commission (PRC) ranks the result of the CPA professional examination in 2016.

_______________________________________________________

5. One hundred Customers have their corresponding age and buying preference results. The manager wants to determine its relationship.

_______________________________________________________

6. An analyst recorded the sales revenue statistics of his textile company for the last 10 months; he wants to determine if there will be a relative increase or decrease in the sales revenue for the next month.

_______________________________________________________

7. Enrolment record of all colleges and universities in the Philippines.

_______________________________________________________

8. The effects of HIV virus to the death rate worldwide.

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9. A campaign manager analyzes the effect of TV ads on the promotion of a senatorial candidate.

_______________________________________________________

10. A researcher tested the difference on the customers buying preference in different brands of milk.

_______________________________________________________

 

II. Classify each variables as qualitative or quantitative.

 

1. Automobile ownership of students.

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2. Net weight (in grams) of packed cereal.

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3. Useful lifetime (in hours) of 100 watts light bulb.

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4. Number of one time arrivals per hour at a large airport.

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5. Brand of cellphone used.

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6. Cost of cellphone.

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7. Word processing package primarily used.

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8. Favorite department store.

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9. Amount of time spent playing basketball.

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10. Most likely time period during which shopping for clothing takes place (weekday, weeknight or weekend)

_______________________________________________________

 

III. Identify each item as discrete or continuous.

 

1. Outcomes in rolling a pair of dice.

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2. Square root of 2.

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3. Number of online purchase made in a week.

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4. Student enrollment in University of the Philippines.

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5. Whole numbers.

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6. Weight of students in Grade 11.

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7. Honda civic sales for the last 3 months.

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8. Amount of money spent on groceries in a month.

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9. Number of pizzas sold each day in Pizza Hut.

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10. Number of persons in a family.

_______________________________________________________

 

IV. Determine whether each of the following is nominal, ordinal, interval or ratio data.

 

1. Social Security System Number.

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2. Military ranks.

__________________________________________________________

3. The number of LRT passengers from Boni to Crossing station.

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4. Courses offered in university belt.

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5. Beauty contest winners.

__________________________________________________________

6. Number of votes in each Senatorial Candidate.

__________________________________________________________

7. Performance rating of the students in Statistics.

__________________________________________________________

8. Nationality of certain individuals.

__________________________________________________________

9. Ranking of tennis players.

__________________________________________________________

10. Pages in the PLDT telephone book.

__________________________________________________________

 

V. Answer the following questions.

 

1. What type of sampling would each of the following represent?