Statistics For The Behavioral And Social Sciences: A Brief Course, Books A La Carte (6th Edition) (what's New In Psychology)
6th Edition
ISBN: 9780205989065
Author: Arthur Aron Ph.D., Elliot J. Coups Ph.d., Elaine N. Aron Ph.D.
Publisher: PEARSON
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Chapter 3, Problem 11PP
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Explain the random-digit-dial method to a person who has never had a course in statistics.
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Q.1.2
Match the definition in column X with the correct term in column Y.
Two marks will be awarded for each correct answer.
(20)
COLUMN X
Q.1.2.1
COLUMN Y
Condenses sample data into a few summary
A.
Statistics
measures
Q.1.2.2
The collection of all possible observations that
exist for the random variable under study.
B.
Descriptive statistics
Q.1.2.3
Describes a characteristic of a sample.
C.
Ordinal-scaled data
Q.1.2.4
The actual values or outcomes are recorded
on a random variable.
D.
Inferential statistics
0.1.2.5
Categorical data, where the categories have an
implied ranking.
E.
Data
Q.1.2.6
A set of mathematically based tools &
techniques that transform raw data into
F.
Statistical modelling
information to support effective decision-
making.
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The following table indicates the unit prices (in Rands) and quantities of three consumer products
to be held in a supermarket warehouse in Lenasia over the time period from April to July 2025.
APRIL 2025
JULY 2025
PRODUCT
Unit Price (po)
Quantity (q0))
Unit Price (p₁)
Quantity (q1)
Mineral Water
R23.70
403
R25.70
423
H&S Shampoo
R77.00
922
R79.40
899
Toilet Paper
R106.50
725
R104.70
730
The Independent Institute of Education (Pty) Ltd 2025
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The following table indicates the unit prices (in Rands) and quantities of three meals sold every year
by a small restaurant over the years 2023 and 2025.
2023
2025
MEAL
Unit Price (po) Quantity (q0))
Unit Price (P₁)
Quantity (q₁)
Lasagne
R125
1055
R145
1125
Pizza
R110
2115
R130
2195
Pasta
R95
1950
R120
2250
Q.2.1
Using 2023 as the base year, compute the individual price relatives in 2025 for (10)
lasagne and pasta. Interpret each of your answers.
0.2.2
Using 2023 as the base year, compute the Laspeyres price index for all of the meals (8)
for 2025. Interpret your answer.
Q.2.3
Using 2023 as the base year, compute the Paasche price index for all of the meals (7)
for 2025. Interpret your answer.
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Chapter 3 Solutions
Statistics For The Behavioral And Social Sciences: A Brief Course, Books A La Carte (6th Edition) (what's New In Psychology)
Ch. 3 - Prob. 1.1HDCh. 3 - Write the formula for changing a raw score to a Z...Ch. 3 - For a particular group of scores, M = 20 and SD =...Ch. 3 - Write the formula for changing a Z score to a raw...Ch. 3 - For a particular group of scores, M = 10 and SD =...Ch. 3 - Suppose a person has a Z score for overall health...Ch. 3 - Why is the normal curve (or at least a curve that...Ch. 3 - Without using a normal curve table, about what...Ch. 3 - Without using a normal curve table, about what...Ch. 3 - Without using a normal curve table, about what Z...
Ch. 3 - Using the normal curve table, what percentage of...Ch. 3 - Using the normal curve table, what Z score would...Ch. 3 - Explain the difference between the population and...Ch. 3 - Why do psychologists usually study samples and not...Ch. 3 - Explain the difference between random sampling and...Ch. 3 - Explain the difference between a population...Ch. 3 - Give the symbols for the population parameters for...Ch. 3 - Why are different symbols (Greek versus Roman...Ch. 3 - The probability of an event is defined as the...Ch. 3 - List and explain two interpretations of...Ch. 3 - Suppose you have 400 coins in a jar and 40 of them...Ch. 3 - Prob. 4.4HDCh. 3 - Prob. 4.5HDCh. 3 - On a measure of anxiety, the mean is 79 and the...Ch. 3 - On an intelligence test, the mean number of raw...Ch. 3 - Six months after a divorce, the former wife and...Ch. 3 - Suppose the people living in a city have a mean...Ch. 3 - Using the information in problem 4 and the...Ch. 3 - A psychologist has been studying eye fatigue using...Ch. 3 - In the previous problem, the test of eye fatigue...Ch. 3 - In the eye fatigue example of problems 6 and 7,...Ch. 3 - Using a normal curve table, give the percentage of...Ch. 3 - Consider a test of coordination that has a normal...Ch. 3 - Prob. 11PPCh. 3 - Prob. 12PPCh. 3 - On a measure of artistic ability, the mean for...Ch. 3 - Prob. 14PPCh. 3 - A person scores 81 on a test of verbal ability and...Ch. 3 - Prob. 16PPCh. 3 - Using the information in problem 16 and the...Ch. 3 - Suppose that the scores of architects on a...Ch. 3 - Prob. 19PPCh. 3 - Prob. 20PPCh. 3 - Suppose that you are designing an instrument panel...Ch. 3 - Prob. 22PPCh. 3 - Prob. 23PPCh. 3 - Prob. 24PPCh. 3 - Prob. 25PPCh. 3 - Prob. 26PP
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