eQuizShow

Introduction to Statistics

Basic Concepts

POPULATION

What doyou call the complete collection of persons, things, or objects under the study?

STATISTICS

What is the body of knowledge concerned with thecollection, organization, presentation, analysis, and interpretation of data?

SAMPLE

What isthe subset or a representative of the population determined by samplingprocedures?

DATA

What do you call the facts and figures that are collected, presented, and analyzed?

EDUCATION,GOVERNMENT, BUSINESS, ECONOMICS, AGRICULTURE, MEDICINE, PSYCHOLOGY, SOCIOLOGY,SPORTS, AND OTHERS

Are these fields where Statistics can be appliedand play an important role?

Variables and Data

QUANTITATIVE

How doyou identify numerical information that can be manipulated by mathematicaloperations?

ORDINAL

What level ofmeasurement contains the properties of the nominal level but the values of thevariable have implied ordering but precise differences between ranks do notexist?

TEMPERATURE IN DEGREES CELSIUS

Is this a variable measured in an interval scale wherein there is no true zero?

OR

Is this a continuous quantitative variable that can be measured?

DEMOGRAPHIC DATA

Are these observations recorded about people which usually include information about age, gender, place of birth, religion, employment status, and other data relevant to the purpose of the study?

GENDER

Is this a variable measured on a nominal scale wherein values are used for categorical purposes only and does not have an implied ordering?

OR

Is this a qualitative variable which is descriptive information that cannot be subjected to mathematical operations?

Data Collection

INTERVIEW

Is this a way to collect data wherein an interviewer asks the questions to the respondents of the study and can be done via face-to-face or any communication devices?

CENSUS

Is this a complete enumeration of data from the population?

OR

Is this a way to collect data via registration like that of birth certificate, marriage certificate, and driver's license?

SECONDARY DATA

Is this information gathered from secondary sources such as books, journals, magazines, or the thesis of other researches?

OBSERVATION

Is this a way to collect data using our five senses which are usually done in social experiments wherein the researchers will observe the facial expressions, movements, response, etc., of the population under study?

QUESTIONNAIRE

Is this a way to collect data via survey forms, written or typewritten, in which the respondents can accomplish the needed information in their own time?

Slovin's Formula

Is that the Slovin's formula used in determining the sample size needed to conduct a study?

POPULATION SIZE

Is that the number of elements in the population that can be counted from a list called sampling frame?

MARGIN OF ERROR

Is that the error committed when samples are used instead of the entire population which is demoted by e in theSlovin's Formula?

N = 250 and e = 5%

Will 154 samples enough when those are the given and using the Slovin's Formula?

When the population size is equal to 1000 and the margin of error is 7%, the sample size needed when Slovin's formula is used is only 169.

Is that statement false because the minimum number of samples needed is not 169 but 170?

Sampling Techniques

SAMPLING

Is this the process of selecting a part of the population?

PROBABILITY SAMPLING TECHNIQUES

Are these simple random, stratified, cluster, and systematic sampling?

OR

Is this when there is some form of random selection to take the samples needed from the population?

CLUSTER SAMPLING

Is this a probability sampling technique wherein the population is grouped into clusters and then there will be a random selection of cluster/s which will automatically mean all the members of the selected clusters as samples?

Junior HighSchool students are grouped according to the clubs they belong to and each club randomly chose their representative for the upcoming school meeting with the Student Activities Office or SAO.

Is that a probability sampling technique, specifically Stratified Random Sampling?

SYSTEMATIC SAMPLING

Is that a probability sampling technique wherein samples are obtained by numbering each subject of the population, randomly selecting the first sample, then selecting every kth subject from the random start until the desired sample size n?