question and answers

Content Type

User Generated

User

Onnqe349

Subject

Business Finance

Description

Question 12 pts

In the ____________ level of measurement, there is an absolute zero point.

Ordinal

Ratio

Interval

Nominal

Flag this QuestionQuestion 22 pts

A ______________ consists of all subjects that are being studied.

Sample

Polynomial

Population

Variable

Flag this QuestionQuestion 32 pts

____________ statistics is used to make ____________.

Inferential ------------ Predictions

Discrete ------------ Samples

Continuous ------------ Populations

Descriptive ------------ Variables

Flag this QuestionQuestion 42 pts

A ____________ variable assumes numerical values that are ____________.

Continuous ------------ Negative

Discrete ------------ Separated by gaps

Categorical ------------ Stratified

Qualitative ------------ Inferential

Flag this QuestionQuestion 52 pts

What level of measurement classifies data into categories with no order or ranking ?

Interval

Nominal

Ratio

Ordinal

Flag this QuestionQuestion 62 pts

Rating the quality of a restaurant is an example of the ____________ level of measurement.

Interval

Ratio

Nominal

Ordinal

Flag this QuestionQuestion 72 pts

Classifying books as novels, poetry and dictionaries is an example of the ____________ level of measurement.

Ordinal

Interval

Nominal

Ratio

Flag this QuestionQuestion 82 pts

A variable that records the hair colors of several persons would be an example of a ____________ variable.

Numerical

Discrete

Categorical

Continuous

Flag this QuestionQuestion 92 pts

Based on data from the past, a person expects to pay $ 75 / month in electricity this year. This is an example of ____________ statistics.

Descriptive

Inferential

Continuous

Discrete

Flag this QuestionQuestion 102 pts

Select the correct statement.

A population is a portion of the sample.

Sample and population are the same thing.

Sample and population are disjoint (have no elements in common).

A sample is a portion of the population.

Flag this QuestionQuestion 112 pts

In ____________ sampling, each element of the population has ____________ chance of being selected.

Systematic ------------ Negative

Random ------------ Equal

Cluster ------------ Proportional

Discrete ------------ Different

Flag this QuestionQuestion 122 pts

What type of sampling technique is being employed if the country is divided into economic classes and a sample is randomly chosen from each class to be surveyed ?

Systematic sampling

Stratified sampling

Random sampling

Cluster sampling

Flag this QuestionQuestion 132 pts

In an experimental study, the _______________ variable is manipulated to see if that changes the _______________ variable.

Qualitative ------------ Quantitative

Explanatory ------------ Response

Continuous ------------ Discrete

Positive ------------ Negative

Flag this QuestionQuestion 142 pts

Suppose that some students are lined up in a row and you select the students in even positions.

This is an example of ____________ sampling.

Systematic

Cluster

Random

Stratified

Flag this QuestionQuestion 152 pts

A confounding variable is:

The same as the explanatory variable.

An extraneous variable that has not been controlled.

A type of categorical variable.

The same as the response variable.

Flag this QuestionQuestion 162 pts

In an ____________ study the researcher ____________ variables.

Unbiased ------------ Calculates discrete

Observational ------------ Does not manipulate any

Experimental ------------ There are no

Empirical ------------ Samples all categorical

Flag this QuestionQuestion 172 pts

You ask 4 persons about a new movie and they all liked it; then you conclude that the movie was a big success. This is an example of:

Loaded question.

Conflict of interests.

Misleading graph.

Small sample size

Flag this QuestionQuestion 182 pts

What type of sampling is being used if Florida is divided into counties and all the persons from some randomly selected counties are surveyed ?

Cluster sampling

Convenience sampling

Systematic sampling

Stratified sampling

Flag this QuestionQuestion 192 pts

The amount of money in a bank account is an example of the ____________ level of measurement.

Nominal

Ratio

Interval

Ordinal

Flag this QuestionQuestion 202 pts

Which of the following variables is continuous ?

The number of cakes in a bakery

The flavors of the cakes in a bakery

The colors of cakes in a bakery

The baking times of the cakes in a bakery

Flag this QuestionQuestion 212 pts

Descriptive Statistics:

Branch of Statistics that is used to collect, organize and summarize data from a sample.

Branch of Statistics that makes inferences, generalizations or predictions about a population based on sample data.

Branch of Mathematics that studies polynomials.

Branch of Mathematics that studies random phenomena.

Flag this QuestionQuestion 222 pts

Inferential Statistics:

Branch of Statistics that is used to collect, organize and summarize data from a sample.

Branch of Mathematics that studies polynomials.

Branch of Statistics that makes inferences, generalizations or predictions about a population based on sample data.

Branch of Mathematics that studies random phenomena.

Flag this QuestionQuestion 232 pts

Population:

Number of persons that inhabit a country.

Number of variables in an experiment.

Set of all organisms that live in a certain geographical area.

Complete collection of all subjects of interest in a statistical study.

Flag this QuestionQuestion 242 pts

Sample:

Specimen taken from a tissue.

Excerpt taken from a musical recording.

Subset of the population.

Piece of mineral.

Flag this QuestionQuestion 252 pts

Observational study:

Type of study in which the researcher deliberately influences the phenomenon or process under study.

Type of study in which the researcher only observes, collects data, and draws conclusions, without interfering with the variables of interest.

Type of study in which the researcher manipulates the input variable(s) to try to determine the effect on the output variable(s).

Type of study in which the researcher predicts the future.

Flag this QuestionQuestion 262 pts

Categorical Variable:

Variable whose values have an intrinsic ordering.

Variable whose values are whole numbers.

Variable whose values are names or labels.

Variable whose values are real numbers.

Flag this QuestionQuestion 272 pts

Continuous Variable:

Variable whose values are not numerical.

Variable that can only assume a finite number of values.

Variable whose values can be any real number in a certain interval.

Variable whose values cannot be ordered.

Flag this QuestionQuestion 282 pts

Stratified Sampling:

Sampling technique that consists in subdividing the population into homogeneous, exhaustive and non-overlapping subgroups, and then drawing a sample from each subgroup.

Sampling technique that consists in dividing the population into exhaustive and non-overlapping subgroups, then randomly selecting some of those subgroups and choosing all the members from those selected subgroups.

Sampling technique that consists in ordering the population in a list, choosing a starting point and then selecting every k-th element in the list.

Sampling technique that consists in selecting those members of the population that are easy to access.

Flag this QuestionQuestion 292 pts

Interval Level of Measurement:

Level of measurement in which the data consists of categories with no intrinsic order.

Level of measurement in which the data has intrinsic order, differences are meaningful, but ratios are meaningless. There is no absolute zero.

Level of measurement in which the data has intrinsic order, but differences are meaningless.

Level of measurement in which the data has intrinsic order, and both differences and ratios are meaningful. There is an absolute zero.

Flag this QuestionQuestion 302 pts

Ratio Level of Measurement:

Level of measurement in which the data consists of categories with no intrinsic order.

Level of measurement in which the data has an intrinsic order, and both differences and ratios are meaningful. There is an absolute zero.

Level of measurement in which the data has an intrinsic order, but differences are meaningless.

Level of measurement in which the data has an intrinsic order, differences are meaningful, but ratios are meaningless. There is no absolute zero.

Flag this QuestionQuestion 312 pts

In ____________ studies, the group that receives the treatment being tested is called the ____________ group.

Stratified ------------ Irregular

Experimental ------------ Treatment

Categorical ------------ Regular

Observational ------------ Control

Flag this QuestionQuestion 322 pts

A professor reviews the records of all his students and finds that 90 % of them passed the Final Exam. This number is a ____________.

Sample

Statistic

Population

Parameter

Flag this QuestionQuestion 332 pts

____________ is the selection of a ____________ from a ____________.

Sampling ------------ Sample ------------ Population

Statistical Inference ------------ Sample ------------ Population

Sampling ------------ Population ------------ Sample

Statistical Inference ------------ Population ------------ Sample

Flag this QuestionQuestion 342 pts

In both ____________ and ____________ sampling, the first step is to divide the population into subgroups.

Systematic ------------ Random

Descriptive ------------ Inferential

Random ------------ Convenience

Stratified ------------ Cluster

Flag this QuestionQuestion 352 pts

Which of the following is a categorical variable ?

Heights of students in a class

Names of students in a class

Number of students in a class

Weights of students in a class

Flag this QuestionQuestion 362 pts

Which of the following is a discrete variable ?

The weights of cars in a city

The number of cars in a city

The speeds of cars in a city

The temperatures of cars in a city

Flag this QuestionQuestion 372 pts

The values of discrete variables are obtained by ____________, while the values of continuous variables are obtained by ____________.

Counting ------------ Measuring

Sampling ------------ Inferring

Control ------------ Treatment

Cluster sampling ------------ Stratified sampling

Flag this QuestionQuestion 382 pts

A raffle is an example of ____________ sampling.

Cluster

Systematic

Stratified

Random

Flag this QuestionQuestion 392 pts

In many clinical trials, a ____________ is administered to the ____________ group.

Sample ------------ Population

Placebo ------------ Control

Treatment ------------ Observational

Parameter ------------ Discrete

Flag this QuestionQuestion 402 pts

____________ variables distort the conclusions of an experiment and undermine its validity.

Independent

Confounding

Extraneous

Dependent

Flag this QuestionQuestion 412 pts

Another name for ____________ variable is ____________ variable.

Independent ------------ Input

Input ------------ Output

Explanatory ------------ Response

Extraneous ------------ Lurking

Flag this QuestionQuestion 422 pts

Drawing conclusions about the ____________ based on sample information is called ____________.

Population ------------ Statistical Inference

Discrete Variable ------------ Placebo Effect

Treatment Group ------------ Random Sampling

Continuous Variable ------------ Descriptive Statistics

Flag this QuestionQuestion 432 pts

A researcher is studying the effect of red wine consumption on cholesterol levels. The level of cholesterol is the ____________ variable.

Independent

Confounding

Dependent

Extraneous

Flag this QuestionQuestion 442 pts

A study is comparing the academic performance of children from married parents vs divorced parents. This is an example of ____________ study.

Inferential

Observational

Experimental

Controlled

Flag this QuestionQuestion 452 pts

A researcher is testing the elasticity of several materials, under controlled conditions.
Type of material: ____________ variable.
Temperature of the room: ____________ variable.
Elasticity: ____________ variable.

Independent ------------ Extraneous ------------ Dependent

Extraneous ------------ Explanatory ------------ Confounding

Response ------------ Output ------------ Input

Confounding ------------ Explanatory ------------ Extraneous

Flag this QuestionQuestion 462 pts

The prediction of the stock market based on past trends is an example of ____________.

Descriptive Statistics

Systematic Sampling

Inferential Statistics

Extraneous Variable

Flag this QuestionQuestion 472 pts

An advertisement for a pill claims that it "works five times faster". This is an example of ____________.

Small sample size

Detached statistics

Loaded question

Misleading graph

Flag this QuestionQuestion 482 pts

A research team is investigating the influence of magnetic fields in the growth of cancer cells in mice. The diet of mice is kept the same in the control and treatment groups. What type of variable is the diet of mice ?

Extraneous

Confounding

Response

Explanatory

Flag this QuestionQuestion 492 pts

A professor is studying the phenomenon of cigarette smoking among students in a certain college. He takes a sample of students from the college and finds that 20 % of them smoke. This number (20 %) is a ____________.

Sample

Statistic

Population

Parameter

Flag this QuestionQuestion 502 pts

A student is conducting surveys for a class project. To that end, she takes a sample of those students that are near her dormitory. This is an example of ____________ sampling.

Cluster

Random

Systematic

Convenience

Tags: statistics Bus

User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Explanation & Answer

Hello there,Hope you are doing great . As promised , i wanted to tell you that i managed to finish the task you requested me to do . I am attaching to this message a Microsoft Office Word (.docx format) file entitled "Statistics Final Answers" which contains the answers.Everything that is written in bold is the question and everything that is highlighted in yellow is an answer.Please take a look over the file and even though i expect all to be correct , in case you have any doubts on any of the questions , just get back to me and i will double check it once more for you.

In the ____________ level of measurement, there is an absolute zero point.
ORDINAL
RATIO
INTERVAL
NOMINAL
Flag this QuestionQuestion 22 pts

A ______________ consists of all subjects that are being studied.
SAMPLE
POLYNOMIAL
POPULATION
VARIABLE
Flag this QuestionQuestion 32 pts

____________ statistics is used to make ____________.
INFERENTIAL ------------ PREDICTIONS
DISCRETE ------------ SAMPLES
CONTINUOUS ------------ POPULATIONS
DESCRIPTIVE ------------ VARIABLES
Flag this QuestionQuestion 42 pts

A ____________ variable assumes numerical values that are ____________.
CONTINUOUS ------------ NEGATIVE
DISCRETE ------------ SEPARATED BY GAPS
CATEGORICAL ------------ STRATIFIED
QUALITATIVE ------------ INFERENTIAL
Flag this QuestionQuestion 52 pts

What level of measurement classifies data into categories with no order or ranking ?
INTERVAL
NOMINAL

RATIO
ORDINAL
Flag this QuestionQuestion 62 pts

Rating the quality of a restaurant is an example of the ____________ level of measurement.
INTERVAL
RATIO
NOMINAL
ORDINAL
Flag this QuestionQuestion 72 pts

Classifying books as novels, poetry and dictionaries is an example of the ____________ level
of measurement.
ORDINAL
INTERVAL
NOMINAL
RATIO
Flag this QuestionQuestion 82 pts

A variable that records the hair colors of several persons would be an example of a
____________ variable.
NUMERICAL
DISCRETE
CATEGORICAL
CONTINUOUS
Flag this QuestionQuestion 92 pts

Based on data from the past, a person expects to pay $ 75 / month in electricity this year.
This is an example of ____________ statistics.
DESCRIPTIVE
INFERENTIAL

CONTINUOUS
DISCRETE
Flag this QuestionQuestion 102 pts

Select the correct statement.
A POPULATION IS A PORTION OF THE SAMPLE.
SAMPLE AND POPULATION ARE THE SAME THING.
SAMPLE AND POPULATION ARE DISJOINT (HAVE NO ELEMENTS IN COMMON).
A SAMPLE IS A PORTION OF THE POPULATION.
Flag this QuestionQuestion 112 pts

In ____________ sampling, each element of the population has ____________ chance of being
selected.
SYSTEMATIC ------------ NEGATIVE
RANDOM ------------ EQUAL
CLUSTER ------------ PROPORTIONAL
DISCRETE ------------ DIFFERENT
Flag this QuestionQuestion 122 pts

What type of sampling technique is bei...