Reading 7: Statistical Concepts and Market Returns-LOS a, (P 2010, statements, following, between, center

bmaggie

Session 2: Quantitative Methods: Basic Concepts
Reading 7: Statistical Concepts and Market Returns

LOS a, (Part 1): Differentiate between descriptive statistics and inferential statisitics, and between a population and a sample.

 

 

 

Which of the following statements regarding the terms population and sample is least accurate?

A) A sample's characteristics are attributed to the population as a whole.

B) A descriptive measure of a sample is called a statistic.

C) A sample includes all members of a specified group.

kison

xx

zaestau

c

bmaggie

Which one of the following alternatives best describes the primary use of descriptive statistics? Descriptive statistics are used to:

A) obtain data about the characteristics of any data set that can be used to assess the likelihood of the occurrence of future events.

B) summarize important characteristics of large data sets.

C) arrive at estimates regarding a large set of data regarding the statistical characteristics of a smaller sample.

bmaggie

Which one of the following alternatives best describes the primary use of descriptive statistics? Descriptive statistics are used to:

A) obtain data about the characteristics of any data set that can be used to assess the likelihood of the occurrence of future events.

B) summarize important characteristics of large data sets.

C) arrive at estimates regarding a large set of data regarding the statistical characteristics of a smaller sample.

---

Descriptive statistics are used mainly to summarize important characteristics of large data sets.

bmaggie

What is the main difference between descriptive statistics and inferential statistics? Descriptive statistics are:

A) used to summarize a large data set while inferential statistics involves procedures used to make forecasts or judgments about a large data set by examining a smaller sample.

B) used to summarize data while inferential statistics are used to obtain precise information about a large data set.

C) used to make forecasts about the likelihood of upcoming events while inferential statistics are used to summarize any data set.

bmaggie

What is the main difference between descriptive statistics and inferential statistics? Descriptive statistics are:

A) used to summarize a large data set while inferential statistics involves procedures used to make forecasts or judgments about a large data set by examining a smaller sample.

B) used to summarize data while inferential statistics are used to obtain precise information about a large data set.

C) used to make forecasts about the likelihood of upcoming events while inferential statistics are used to summarize any data set.

---

Descriptive statistics are used to summarize a large data set while inferential statistics are based on procedures used to make forecasts or judgments about a large data set by examining a smaller set of data.

bmaggie

Which of the following statements about statistical concepts is least accurate?

A) A frequency distribution is a tabular display of data summarized into a relatively small number of intervals.

B) A parameter is any descriptive measure of a population characteristic.

C) A sample contains all members of a specified group, but a population contains only a subset.

---

A population is defined as all members of a specified group, but a sample is a subset of a population.

bmaggie

A summary measure that is computed to describe a population characteristic from a sample is called a:

A) census.

B) parameter.

C) statistic.

bmaggie

A summary measure that is computed to describe a population characteristic from a sample is called a:

A) census.

B) parameter.

C) statistic.

---

When sampling from a portion of the population, you compute a statistic to make inferences about the population.