TEST BANK
Biostatistics for the Biological and Health Sciences
Marc Triola, Mario Triola & Jason Roy
2nd Edition Table of Contents
Chapter 1 Introduction to Statistics 1
Chapter 2 Exploring Data with Tables and Graphs 11
Chapter 3 Describing, Exploring, and Comparing Data 41
Chapter 4 Probability 56
Chapter 5 Discrete Probability Distributions 70
Chapter 6 Normal Probability Distributions 81
Chapter 7 Estimating Parameters and Determining Sample Sizes 94
Chapter 8 Hypothesis Testing 105
Chapter 9 Inferences from Two Samples 118
Chapter 10 Correlation and Regression 133
Chapter 11 Goodness-of-Fit and Contingency Tables 153
Chapter 12 Analysis of Variance 167
Chapter 13 Nonparametric Tests 182
Chapter 14 Survival Analysis 194 TBSM.WS@YAHOO.COMChapter 1 Introduction to Statistics
Exam A
1)Determine whether the given value is a statistic or a parameter.
In studying the loggerhead turtle on Anna Maria Island, FL, scientists observe the average (mean)
number of hatchlings in all 253 nests.
A) Statistic
B) Parameter
Answer: B
2)Determine whether the given value is a statistic or a parameter.
A sample of Medtronic's rechargeable implanted spine stimulator batteries lasted an average (mean)
of nine years.
A) Statistic
B) Parameter
Answer: A
3)A ________ is the complete collection of all measurements or data, whereas, a ________ is a
subcollection of members selected from the complete collection.
A) sample; population
B) population; sample
C) sample; census
D) population; parameter
Answer: B
4)Determine whether the given values are from a discrete or a continuous data set.
People are asked to state how many times in the last month they visited their family doctor.
A) Discrete
B) Continuous
Answer: A
5)Determine whether the given values are from a discrete or a continuous data set.
The number of hatchlings from a sample of 45 bluebird nests is 135.
A) Discrete
B) Continuous
Answer: A
6)Determine which of the four levels of measurement is most appropriate.
Doctors measure the weights (in pounds) of preterm babies.
A) Nominal
B) Ordinal
C) Interval
D) Ratio
Answer: D______________________________________________________________________________________________
______________________________________________________________________________________________Test Bank - Biostatistics for the Biological and Health Sciences, 2nd Edition (Triola, 2018)
1 | P a g e TBSM.WS@YAHOO.COM7)Determine which of the four levels of measurement is most appropriate.
Ornithologists classify hummingbirds in the United States using 17 different species: Allen, Anna,
Berylline, Black-chinned, Blue-throated, Broad-billed, Broad- tailed, Buff-bellied, Calliope, Costa,
Lucifer, Magnificent, Ruby-throated, Rufous, Violet-crowned, White-eared, and Xantus.
A) Nominal
B) Ordinal
C) Interval
D) Ratio
Answer: A
8)Determine which of the four levels of measurement is most appropriate.
The income range of attendees at a research conference is gathered as upper, middle, and low levels.
A) Nominal
B) Ordinal
C) Interval
D) Ratio
Answer: B
9)Determine which of the four levels of measurement is most appropriate.
Biologists measure the water temperature of the Merrimack River in New Hampshire.
A) Nominal
B) Ordinal
C) Interval
D) Ratio
Answer: C
10)Identify the population.
A graduate student conducts a research study on undergraduate student smoking habits. She begins
with a survey to 500 randomly selected undergraduate students from 10 randomly selected U.S.
universities.
A) 500 undergraduate students from 10 U.S. universities
B) Undergraduate students from U.S. universities
C) Graduate students from U.S. universities
D) Smokers in the U.S.
Answer: B
11)Determine whether the given description corresponds to an observational study or an experiment.
In a study of cold symptoms, the body temperatures of study participants were taken.
A) Observational study
B) Experiment
Answer: A______________________________________________________________________________________________
______________________________________________________________________________________________Test Bank - Biostatistics for the Biological and Health Sciences, 2nd Edition (Triola, 2018)
2 | P a g e TBSM.WS@YAHOO.COM12)Determine whether the given description corresponds to an observational study or an experiment.
Children with attention deficit hyperactivity disorder are randomly divided into four treatment groups
(the Tomatis Method, the Dore Method, the Brain Gym, and a control group) to compare differences
in focus and concentration.
A) Observational study
B) Experiment
Answer: B
13)Identify the type of observational study: cross-sectional, retrospective, or prospective.
A researcher from the department of defense is studying the psychology of trauma.
He plans to follow the children of service members who died in Afghanistan for the next 20 years.
A) Cross-sectional
B) Retrospective
C) Prospective
Answer: C
14)Identify the type of observational study: cross-sectional, retrospective, or prospective.
Scientists studying the migration habits of Aleutian geese collect data from reports measuring the
number of geese during "fly-offs" over the past 15 years.
A) Cross-sectional
B) Retrospective
C) Prospective
Answer: B
15)Determine the type of sampling used: systematic, convenience, stratified, or cluster.
To conduct a study of hospital admittance procedures, a list of hospital locations according to county
is compiled. All the hospitals from 20 randomly selected counties are selected to be surveyed.
A) Systematic
B) Convenience
C) Stratified
D) Cluster
Answer: D
16)Determine the type of sampling used: systematic, convenience, stratified, or cluster.
A county water quality control officer obtains a list of all residential addresses in the county and
constructs a sample of homes to monitor by selecting every 200th home on the list.
A) Systematic
B) Convenience
C) Stratified
D) Cluster
Answer: A______________________________________________________________________________________________
______________________________________________________________________________________________Test Bank - Biostatistics for the Biological and Health Sciences, 2nd Edition (Triola, 2018)
3 | P a g e TBSM.WS@YAHOO.COM17)Determine the type of sampling used: systematic, convenience, stratified, or cluster.
To obtain a sample of pregnant women, a researcher contacts her son's preschool teacher for a list of
names.
A) Systematic
B) Convenience
C) Stratified
D) Cluster
Answer: B
18)Determine the type of sampling used: systematic, convenience, stratified, or cluster.
Biologists divide the regions where Red foxes are found into the Nearctic, Palearctic, Oriental,
Ethiopian, and the Australian region. They plan to follow 100 female foxes from each region to find
the average (mean) number of their offspring.
A) Systematic
B) Convenience
C) Stratified
D) Cluster
Answer: C
19)To assess the variation in measurement (in cubic centimeters) of pre-filled syringes containing
experimental cervical cancer vaccine, manufacturers select every 200th syringe beginning at a random
moment. Does this sampling plan result in a random sample? Simple random sample?
A) Yes; yes
B) Yes; no
C) No; yes
D) No; no
Answer: B
20)To monitor levels of the giardia parasite in the Rio Grande, aquatic biologists collect test tube
samples at various locations determined by a computer randomization program. Does this sampling
plan result in a random sample? Simple random sample?
A) Yes; yes
B) Yes; no
C) No; yes
D) No; no
Answer: A
Exam B
1)Determine whether the given value is a statistic or a parameter.
Nurses measure and calculate the average (mean) body temperature for all 187 patients at a regional
hospital.
A) Statistic
B) Parameter
Answer: B______________________________________________________________________________________________
______________________________________________________________________________________________Test Bank - Biostatistics for the Biological and Health Sciences, 2nd Edition (Triola, 2018)
4 | P a g e TBSM.WS@YAHOO.COM2)Determine whether the given value is a statistic or a parameter.
A sample of Sidewinder, or Horned, Rattlesnakes is found to have an average (mean) length of 26
inches.
A) Statistic
B) Parameter
Answer: A
3)Determine whether the given values are from a discrete or a continuous data set.
A sample of male Bighorn sheep has an average (mean) horn base circumference of 43.2 centimeters.
A) Discrete
B) Continuous
Answer: B
4)Determine whether the given values are from a discrete or a continuous data set.
The Produce for Better Health Foundation manages the campaign advocating consumers to eat "5
Fruits and Vegetables A Day for Better Health" and gathers data on the number of servings of fruit
and vegetables that a sample of Americans ate yesterday
A) Discrete
B) Continuous
Answer: A
5)Determine which of the four levels of measurement is most appropriate.
Doctors measure the weights (in pounds) of pregnant women.
A) Nominal
B) Ordinal
C) Interval
D) Ratio
Answer: D
6)Determine which of the four levels of measurement is most appropriate.
Scientists classify the four major deserts in North America using different regions: the Great Basin,
the Mojave, the Sonoran, and the Chihuahuan.
A) Nominal
B) Ordinal
C) Interval
D) Ratio
Answer: A
7)Determine which of the four levels of measurement is most appropriate.
Physicians rank the severity of asthma using mild intermittent asthma, mild persistent asthma,
moderate persistent asthma, severe persistent asthma, or brittle asthma.
A) Nominal
B) Ordinal
C) Interval
D) Ratio
Answer: B______________________________________________________________________________________________
______________________________________________________________________________________________Test Bank - Biostatistics for the Biological and Health Sciences, 2nd Edition (Triola, 2018)
5 | P a g e TBSM.WS@YAHOO.COM8)Determine which of the four levels of measurement is most appropriate.
Biologists monitor the air temperature of the Biosphere 2 in Oracle, Arizona.
A) Nominal
B) Ordinal
C) Interval
D) Ratio
Answer: C
9)A ________ is the complete collection of all measurements or data, whereas, a ________ is a
subcollection of members selected from the complete collection.
A) population; sample
B) sample; population
C) sample; census
D) population; parameter
Answer: A
10)Determine whether the given description corresponds to an observational study or an experiment.
In a study of the Bald Eagle population, the number of breeding pairs is counted.
A) Observational study
B) Experiment
Answer: A
11)Determine whether the given description corresponds to an observational study or an experiment.
Patients with severe heart failure were randomly assigned to two treatment groups to compare death
and hospitalization rates. One group was treated with drug therapy while the other group was treated
with a combination of drugs and an electrical device.
A) Observational study
B) Experiment
Answer: B
12)Identify the type of observational study: cross-sectional, retrospective, or prospective.
Climatologists studying global warming record the average (mean) temperature of the Earth and the
change in size of the ice caps during the next 50 years.
A) Cross-sectional
B) Retrospective
C) Prospective
Answer: C
13)Identify the type of observational study: cross-sectional, retrospective, or prospective.
Geneticists studying the biodiversity of roses collect data from reports classifying the number of
varieties during the past 30 years.
A) Cross-sectional
B) Retrospective
C) Prospective
Answer: B______________________________________________________________________________________________
______________________________________________________________________________________________Test Bank - Biostatistics for the Biological and Health Sciences, 2nd Edition (Triola, 2018)
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