To Accompany
THETRIOLASTATISTICS SERIES:
Elementary Statistics, Tenth Edition
Elementary Statistics Using Excel, Third
Edition Essentials Of Statistics, Third
Edition
Elementary Statistics Using
The Ti-83/84 Plus Calculator, Second Edition
Mario F.Triola
Dutchess Community College
, Contents
Each test is immediately followed by its answer key.
Page
Chapter 1..................................................................... 1
Chapter 2..................................................................... 16
Chapter 3.......................................................................49
Chapter 4.......................................................................67
Chapter 5.......................................................................82
Chapter 6.......................................................................100
Chapter 7.......................................................................118
Chapter 8.......................................................................133
Chapter 9.......................................................................152
Chapter 10 ....................................................................173
Chapter 11 ..................................................................... 204
Chapter 12 ..................................................................... 222
Chapter 13 ..................................................................... 252
Chapter 14 ..................................................................... 275
,CHAPTER 1 FORM
Name: course number: section number:
Directions: rite your answers to tke skort-answer items in tke spaces
provided. Circle tke correct ckoice for multiple-ckoice items.
Provide an appropriate response.
1) Define random sample. E<plain why this is important in design of e<periments.
Determine wketker tke given value is a statistic or a parameter.
2) A sample of 120 employees of a company is selected, and the average age is
found to be 37 years.
A) Statistic b) parameter
Identify tke number as eitker continuous or discrete.
3) The number of freshmen entering college in a certain year is 621.
A) Continuous b) discrete
Determine wkick of tke four levels of measurement (nominal, ordinal, interval, ratio) is
most appropriate.
4) Survey responses of "good, better, best".
A) Nominal b) interval c) ratio d) ordinal
5) salaries of college Professors.
A) interval B) ordinal C) ratio D) nominal
Identify tke sample and population. !Lso, determine wketker tke sample is
likely to be representative of tke population.
6) An employee at the local ice cream parlor asks three customers if they like
chocolate ice cream.
1
1
, CHAPTER 1 FORM
Use critical tkinking to develop an alternative conclusion.
7) In a study of headache patients, every one of the study subjects with a headache
was found to be improved after taking a week off of work. Conclusion: taking
time off work cures headaches.
Use critical tkinking to address tke key issue.
8) An airline company advertises that 100% of their flights are on time after
checking 5 randomly selected flights and finding that these 5 were on time.
9) "38% of adults in the united states regularly visit a doctor". This conclusion was
reached by a college student after she had questioned 520 randomly selected
members of her college. What is wrong with her survey?
Perform tke requested conversions. Round decimals to tke nearest tkousandtk and
percents to tke nearest tentk of a percent, if necessary.
10) Convert 0.4 to an equivalent fraction and percentage.
3 2 3 2
A) , 40% b) , 40% c) , 4% d) , 4%
10 5 10 5
11) Convert 90% to an equivalent fraction and decimal.
4 9 9 4
A) , 9 b) , 9 c) , 0.9 d) , 0.9
5 10 10 5
1
2
THETRIOLASTATISTICS SERIES:
Elementary Statistics, Tenth Edition
Elementary Statistics Using Excel, Third
Edition Essentials Of Statistics, Third
Edition
Elementary Statistics Using
The Ti-83/84 Plus Calculator, Second Edition
Mario F.Triola
Dutchess Community College
, Contents
Each test is immediately followed by its answer key.
Page
Chapter 1..................................................................... 1
Chapter 2..................................................................... 16
Chapter 3.......................................................................49
Chapter 4.......................................................................67
Chapter 5.......................................................................82
Chapter 6.......................................................................100
Chapter 7.......................................................................118
Chapter 8.......................................................................133
Chapter 9.......................................................................152
Chapter 10 ....................................................................173
Chapter 11 ..................................................................... 204
Chapter 12 ..................................................................... 222
Chapter 13 ..................................................................... 252
Chapter 14 ..................................................................... 275
,CHAPTER 1 FORM
Name: course number: section number:
Directions: rite your answers to tke skort-answer items in tke spaces
provided. Circle tke correct ckoice for multiple-ckoice items.
Provide an appropriate response.
1) Define random sample. E<plain why this is important in design of e<periments.
Determine wketker tke given value is a statistic or a parameter.
2) A sample of 120 employees of a company is selected, and the average age is
found to be 37 years.
A) Statistic b) parameter
Identify tke number as eitker continuous or discrete.
3) The number of freshmen entering college in a certain year is 621.
A) Continuous b) discrete
Determine wkick of tke four levels of measurement (nominal, ordinal, interval, ratio) is
most appropriate.
4) Survey responses of "good, better, best".
A) Nominal b) interval c) ratio d) ordinal
5) salaries of college Professors.
A) interval B) ordinal C) ratio D) nominal
Identify tke sample and population. !Lso, determine wketker tke sample is
likely to be representative of tke population.
6) An employee at the local ice cream parlor asks three customers if they like
chocolate ice cream.
1
1
, CHAPTER 1 FORM
Use critical tkinking to develop an alternative conclusion.
7) In a study of headache patients, every one of the study subjects with a headache
was found to be improved after taking a week off of work. Conclusion: taking
time off work cures headaches.
Use critical tkinking to address tke key issue.
8) An airline company advertises that 100% of their flights are on time after
checking 5 randomly selected flights and finding that these 5 were on time.
9) "38% of adults in the united states regularly visit a doctor". This conclusion was
reached by a college student after she had questioned 520 randomly selected
members of her college. What is wrong with her survey?
Perform tke requested conversions. Round decimals to tke nearest tkousandtk and
percents to tke nearest tentk of a percent, if necessary.
10) Convert 0.4 to an equivalent fraction and percentage.
3 2 3 2
A) , 40% b) , 40% c) , 4% d) , 4%
10 5 10 5
11) Convert 90% to an equivalent fraction and decimal.
4 9 9 4
A) , 9 b) , 9 c) , 0.9 d) , 0.9
5 10 10 5
1
2
