Homework

characteristics of the individuals of the population being studied. - If variables did not​ vary, they would be​ constants, and statistical inference would not be necessary.

The variable is qualitative because it is an attribute characteristic.

allow for classification of individuals based on some attribute or characteristic. Quantitative variables provide numerical measures of​ individuals, and can be added or subtracted and provide meaningful results.

is a quantitative variable that has either a finite number of possible values or a countable number of possible values. A discrete variable cannot take on every possible value between any two possible values.

is a quantitative variable that has an infinite number of possible values that are not countable. A continuous variable may take on every possible value between any two values.

- is a quantitative variable that has either a finite number of possible values or a countable number of possible values. The term​ "countable" means that the values result from​ counting, such as​ 0, 1,​ 2, 3, and so on. - A continuous variable is a quantitative variable that has an infinite number of possible values that are not countable.

The variable is continuous because it is not countable.

The variable is discrete because it is countable.

are observations corresponding to a qualitative variable.

are observations corresponding to a quantitative variable. EX- Income is a quantitative variable; $32,012 or $57,839 are quantitative data.

are observations corresponding to a discrete variable. EX- Attendance at a play is a discrete variable; 8431 attendees or 2984 attendees are discrete data.

are observations corresponding to a continuous variable. EX- Time between calls to a call center is a continuous variable; 32 seconds or 21 seconds (between calls) are continuous data.

A variable is at the_______ if the values of the variable name, label, or categorize. In addition, the naming scheme does not allow for the values of the variable to be arranged in a ranked or specific order. A variable is at the nominal level of measurement if the values of the variable​ name, label, or categorize.

A variable is at the_______ if it has the properties of the nominal level of measurement. However, the naming scheme allows for the values of the variable to be arranged in a ranked or specific order. A variable is at the ordinal level of measurement if it has the properties of the nominal level of​ measurement, but the naming scheme allows for the values of the variable to be arranged in a ranked or specific order.

A variable is at the_______ if it has the properties of the ordinal level of measurement and the differences in the values of the variable have meaning. A value of zero does not mean the absence of the quantity. Arithmetic operations such as addition and subtraction can be performed on the values of the variable. A variable is at the interval level of measurement if it has the properties of the ordinal level of measurement and the differences in the values of the variable have meaning.

A variable is at the_______ if it has the properties of the interval level of measurement and the ratios of the values of the variable have meaning. A value of zero means the absence of the quantity. Arithmetic operations such as multiplication and division can be performed on the values of the variable. A variable is at the ratio level of measurement if it has the properties of the interval level of measurement and the ratios of the values of the variable have meaning.

The entire group of individuals to be studied is called the ___

is a person or object that is a member of the population being studied.

Descriptive, inferential

statistic

parameter

The value is a parameter because the career at dash bats of a baseball player nothing are a population.

1. Identify the Research Objective 2. Collect the Data Needed to Answer the Research​ Question(s) 3. Describe the Data 4. Perform Inference