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QNT 351 Week 2 Individual Assignment My StatsLab 10 Problems

Week 2 Problems 1.Choose the correct answer bellow: A. It is an estimate or prediction or some other generalization about a population based on information contained in a sample B. It is a characteristic or property of an individual experimental unit C. It is the process used to assign numbers to variables of individual population units D. It is the science that deals with collection, classification, and interpretation of information or data

2. Explain the difference between qualitative and quantitative data Choose the correct answer bellow A. Quantitative data are collected from an observational study , while qualitative data are from a designed experiment B. Quantitative data are data from a sample, while qualitative data are data from a population C. Quantitative data are numerical in nature, while qualitative data are categorical in nature


D. Quantitative data are data from a population, while qualitative data are data from a sample E. Quantitative data are categorical in nature, while qualitative data are numerical in nature F. Quantitative data are collected from a designed experiment, while qualitative data are from a observational study

3. Explain how populations and variables differ. Choose the correct answer bellow: A. A population is a set of units of interest to a study. A variable is a subset of the units of a population B. A variable is a set of units of interest to a study. A population is a characteristic or property of the units being studied. C. A population is a set of units of interest to a study. A variable is an object upon which data is collected D. A population is a set of units of interest to a study. A variable is a characteristic or property of the units being studied

4. Define statistical thinking. Choose the correct answer bellow: A. Statistical thinking involves applying rational thought and the science of statistics to critically assess data and interferences B. Statistical thinking is a statement about the degree of uncertainty associated with a statistical inference C. Statistical thinking utilizes sample data to make estimates, decisions, predictions, or other generalization about a larger set of data D. Statistical thinking is a series of actions or operations that transforms inputs to outputs

5. Suppose you’re given a data set that classifies each sample unit into one of four categories: A,B,C or D. You plan to create a computer database consisting of these data, and you decide to code the data as A=, B=, C=3, and D=4. Are the data


consisting of the classifications A, B, C, and D qualitative or quantitative? After the data are input as 1, 2, 3, or 4, are they qualitative or quantitative? Are the data consisting of the classifications A, B, C, and D qualitative or quantitative? A. Quantitative, because they are measured on a naturally occurring numerical sale B. Quantitative, because they can only be classified into categories C. Qualitative, because they can only be classified into categories D. Qualitative, because they are measured on a naturally occurring numerical sale

6. A company tracked all credit card purchases during the year 2005 and measured two variables: (1) the cardholder’s town of residence, and (2) the amount (in dollars) of each monthly payment a. identify the type (qualitative or quantitative) of each variable measured b. does the data set collected represent a population or a sample? a. Is the variable (1) qualitative or quantitative? •

Qualitative

8. Identify each of the following variables as qualitative or quantitative We have another similar question 8 scroll down to see it if it doesn’t match with yours a. Eye color b. Number of brothers and sisters c. Size of home d. Political party preference a. Is the variable qualitative or quantitative? Why?


9. A company surveyed a random sample of 10,000 employees in the region. One question the asked was, “ If your employer provides you with mentoring opportunities are you likely to remain in your job for the next five years?” The found that 730 members of the sample said yes. a. Identify the population of interest in the company

10. Identify each of the following variables as qualitative or quantitative We have another similar question 10 scroll down to see it if it doesn’t match with yours


Qnt 351 week 2 individual assignment my statslab (2 sets)