Quizzes - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
pdf
keyboard_arrow_up
School
Karachi School for Business & Leadership *
*We aren’t endorsed by this school
Course
123
Subject
Statistics
Date
Nov 24, 2024
Type
Pages
11
Uploaded by ChiefNewt2850
11/28/23, 12:11 AM
Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&inP…
1/11
Homework 14
1
2
Your work has been saved and submitted
Written Nov 28, 2023 3:06 AM - Nov 28, 2023 3:13 AM
•
Attempt 2 of 2
Attempt Score
14 / 14 - A
Overall Grade (Highest Attempt)
14 / 14 - A
Question 1
1 / 1 point
For each of the following variables, identify the level of measurement
(nominal, ordinal, interval, or ratio).
(I) Traffic congestion (e.g. light, medium, heavy)
(II) Temperature (in Fahrenheit) of an office building
11/28/23, 12:11 AM
Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&inP…
2/11
Question 2
1 / 1 point
For each of the following variables, identify the type of variable (categorical
vs. numeric).
(I) Income tax brackets (e.g. Below $8925, $8925-36250, $36250-$87850,
etc)
(II) Temperature (in Fahrenheit) of an office building
Question 3
1 / 1 point
1)
(I) Ordinal , and (II) Nominal
2)
(I) Ordinal , and (II) Interval
3)
(I) Nominal , and (II) Ratio
4)
(I) Ratio , and (II) Interval
5)
(I) Ratio , and (II) Ratio
1)
(I) Categorical , and (II) Categorical
2)
There is no correct match.
3)
(I) Numeric , and (II) Numeric
4)
(I) Numeric , and (II) Categorical
5)
(I) Categorical , and (II) Numeric
11/28/23, 12:11 AM
Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&inP…
3/11
Choose the description which best describes the shape of this boxplot.
Question 4
1 / 1 point
The five-number summary for a dataset on Temperature is given in the table
below. Using this information, calculate the percent of values between 18.8
and 59.4.
1)
Contaminated
2)
Symmetric
3)
Bimodal
4)
Left-skewed
5)
Right-skewed
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help
11/28/23, 12:11 AM
Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&inP…
4/11
Question 5
1 / 1 point
The lifespans (in years) of ten beagles were 10; 9; 14; 12; 8; 13; 9; 10; 11; 11.
Calculate the mean of the dataset.
Hide ques±on 5 feedback
1)
100%
2)
0%
3)
50%
4)
75%
5)
25%
1)
1.89
2)
107
3)
10.5
4)
10
5)
10.7
Correct!
11/28/23, 12:11 AM
Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&inP…
5/11
Question 6
1 / 1 point
Ten students took a statistics final and their scores were 83.9; 80; 77.7; 84.5;
79.9; 77.4; 93.1; 88.9; 82; 69. Calculate the standard deviation of the dataset.
Hide ques±on 6 feedback
Question 7
1 / 1 point
Suppose that the middle 95% of speeding ticket fines on a highway fall
between 70.42 and 134.14. Give an approximate estimate of the standard
deviation of the speeding ticket fines. Assume the fine amount has a normal
distribution.
1)
816.4
2)
81.64
3)
81
4)
6.637
5)
6.296
Correct!
1)
7.965
2)
15.93
11/28/23, 12:11 AM
Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&inP…
6/11
Hide ques±on 7 feedback
Question 8
1 / 1 point
Suppose that the mean and standard deviation of the scores on a statistics
exam are 78.5 and 6.35, respectively, and are approximately normally
distributed. Calculate the proportion of scores above 59.
Hide ques±on 8 feedback
3)
31.86
4)
102.28
5)
-15.93
Correct!
1)
0.7488
2)
0.9989
3)
We do not have enough information to calculate the value.
4)
0.2512
5)
0.0011
Correct!
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help
11/28/23, 12:11 AM
Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&inP…
7/11
Question 9
1 / 1 point
If the scores per round of golfers on the PGA tour are approximately normally
distributed with mean 65.9 and standard deviation 1.73, what is the
probability that a randomly chosen golfer's score is below 65 strokes?
Hide ques±on 9 feedback
Question 10
1 / 1 point
A certain list of movies were chosen from lists of recent Academy Award Best
Picture winners, highest grossing movies, series movies (e.g. the Harry Potter
series, the Spiderman series), and from the Sundance Film Festival and are
being analyzed. The mean box office gross was $138.64 million with a
standard deviation of $11.2526 million. Given this information, 98.49% of
movies grossed greater than how much money (in millions)? Assume the
distribution is approximately normal.
1)
0.1685
2)
0.6985
3)
We do not have enough information to calculate the value.
4)
0.3015
5)
0.8315
Correct!
11/28/23, 12:11 AM
Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&inP…
8/11
Hide ques±on 10 feedback
Question 11
1 / 1 point
Suppose that the distribution of income in a certain tax bracket is
approximately normal with a mean of $44,198.21 and a standard deviation of
$4,247.693. Approximately 29.99% of households had an income less than
what dollar amount?
1)
We do not have enough information to calculate the value.
2)
114.25
3)
135.81
4)
163.03
5)
413.09
Correct!
1)
9,422,694
2)
41,969.5
3)
9,511,090
4)
We do not have enough information to calculate the value.
11/28/23, 12:11 AM
Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&inP…
9/11
Hide ques±on 11 feedback
Question 12
1 / 1 point
Apple's market share in the smart phone market represents a proportion of
0.1625. If Apple conducts a survey nationwide of 533 smart phone users,
what is the probability that less than 84 of the people are Apple users?
Hide ques±on 12 feedback
Question 13
1 / 1 point
5)
46,426.93
Correct!
1)
0.4069
2)
0.6383
3)
0.3617
4)
0.0226
5)
0.0452
Correct!
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help
11/28/23, 12:11 AM
Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&in…
10/11
According to a survey conducted by Deloitte in 2017, 0.4532 of U.S.
smartphone owners have made an effort to limit their phone use in the past.
In a sample of 90 randomly selected U.S. smartphone owners, what is the
probability that between 37 and 39 (inclusively) will have attempted to limit
their cell phone use in the past?
Hide ques±on 13 feedback
Question 14
1 / 1 point
Fill in the blanks. Suppose the probability at a light bulb factory of a bulb
being defective is 0.14. If a shipment of 127 bulbs is sent out, the number of
defective bulbs in the shipment should be around __________, give or take
__________. Assume each bulb is independent.
1)
0.6376
2)
0.7883
3)
0.1404
4)
0.2117
5)
0.0278
Correct!
1)
17.78 , 15.29
2)
127 , 3.9103
11/28/23, 12:11 AM
Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University
https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&in…
11/11
Hide ques±on 14 feedback
Done
3)
3.9103 , 17.78
4)
17.78 , 3.9103
5)
17.78 , 0.14
Correct!
Related Documents
Related Questions
what is ncx?
arrow_forward
The National Highway Traffic Safety Administration (NHTSA) collects traffic safety-related data for the U.S. Department of Transportation. According to NHTSA's data, fatal collisions in were the result of collisions with fixed objects (NHTSA website, https://www.careforcrashvictims.com/wp-content/uploads/2018/07/Traffic-Safety-Facts-2016_-Motor-Vehicle-Crash-Data-from-the-Fatality-Analysis-Reporting-System-FARS-and-the-General-Estimates-System-GES.pdf). The following table provides more information on these collisions.Excel File: data04-21.xlsx
Fixed Object Involved in Collision
Number of Collisions
Pole/post
1,416
Culvert/curb/ditch
2,516
Shrubbery/tree
2,585
Guardrail
896
Embankment
947
Bridge
231
Other/unknown
1,835
Assume that a collision will be randomly chosen from this population. Round your answers to four decimal places.
arrow_forward
了
* 00
R
Frequency
cc.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_842675_1&course_id%=_859154_1&content_id%3_19492605_1&step
* Question Completion Status:
QUESTION 1
The following histogram represents the number of body piercings for students in a statistics class.
40
0 2
4.
9
Number of Piercings
8
a. Is this graph symmetric or skewed?
b. For this graph, is mean or median the best choice for the measure of center?
c. For this graph, is standard deviation or IQR the best choice for the measure of variation?
d. For this graph, the mean expected to be
(higher than, lower than, or about the same as?) the median.
QUESTION 2
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Save
2
étv
MacBook Air
DD
F7
F8
08
F 4
F5
F3
2$
4
#3
9.
6.
5.
|
arrow_forward
com/static/nb/ui/evo/index.html?deploymentld%3D57211919418147002668187168&elSBN=9781337114264&id%3D900392331&snapshotld%3D19233498
GE MINDTAP
Q Search this course
-ST 260
Save
Submit Assignment for Grading
ons
Exercise 08.46 Algorithmic
« Question 10 of 10
Check My Work (4 remaining)
eBook
The 92 million Americans of age 50 and over control 50 percent of all discretionary income. AARP estimates that the average annual expenditure on restaurants and carryout
food was $1,876 for individuals in this age group. Suppose this estimate is based on a sample of 80 persons and that the sample standard deviation is $550. Round your
answers to the nearest whole numbers.
a. At 99% confidence, what is the margin of error?
b. What is the 99% confidence interval for the population mean amount spent on restaurants and carryout food?
C. What is your estimate of the total amount spent by Americans of age 50 and over on restaurants and carryout food?
million
d. If the amount spent on restaurants and…
arrow_forward
Can anyone please send me the normal standard table
arrow_forward
number 8.
arrow_forward
Ims.jazanu.edu.sa/bbcswebdav/pid-796204-dt-content-rid-22853746 1/courses/362MATH-3 31_08768 01 501 20212/032%281%29
doz
view-source:https://.. 9
Google bily
YouTube
Gmail M Junalg ul
100%
1 / 1
|
An automobile weighing 4500 lb is driven down a 5° incline at a speed of
60 mi/h when the brakes are applied, causing a constant total braking force
(applied by the road on the tires) of 1800 lb. Determine the distance trav-
eled by the automobile as it comes to a stop.
5°
arrow_forward
PLEASE DO ALL THE PARTS OF THE QUESTION AS ITS ALL FROM ONE!
arrow_forward
A statistics professor for STAT 250 wants to investigate how long it takes students to complete Exam 1. The times that it took all 715 STAT 250 students in Spring 2022 were recorded in the data set “Time to Complete Exam 1” found in StatCrunch. The time is recorded in minutes. A student who completed the exam in 50:30 (50 minutes and 30 seconds) would be recorded as 50.5 minutes
Column
Mean
Std. dev.
Sample 26 (Time)
43.93
7.14
1) Does the mean calculated come from a sampling distribution that is approximately Normal? Check all three conditions of the Central Limit Theorem using one complete sentence for each condition to answer this question
2) Calculate the probability that, in a random sample of 26 students, the mean time to complete Exam 1 is 50 minutes or more. Complete this part by standardizing and using the Standard Normal Table to obtain this probability. Show all work and type all calculations.
arrow_forward
i need help finding the mean and standard deviation
arrow_forward
SEE MORE QUESTIONS
Recommended textbooks for you

Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill

College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning

Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL

Big Ideas Math A Bridge To Success Algebra 1: Stu...
Algebra
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:Houghton Mifflin Harcourt

Mathematics For Machine Technology
Advanced Math
ISBN:9781337798310
Author:Peterson, John.
Publisher:Cengage Learning,
Related Questions
- what is ncx?arrow_forwardThe National Highway Traffic Safety Administration (NHTSA) collects traffic safety-related data for the U.S. Department of Transportation. According to NHTSA's data, fatal collisions in were the result of collisions with fixed objects (NHTSA website, https://www.careforcrashvictims.com/wp-content/uploads/2018/07/Traffic-Safety-Facts-2016_-Motor-Vehicle-Crash-Data-from-the-Fatality-Analysis-Reporting-System-FARS-and-the-General-Estimates-System-GES.pdf). The following table provides more information on these collisions.Excel File: data04-21.xlsx Fixed Object Involved in Collision Number of Collisions Pole/post 1,416 Culvert/curb/ditch 2,516 Shrubbery/tree 2,585 Guardrail 896 Embankment 947 Bridge 231 Other/unknown 1,835 Assume that a collision will be randomly chosen from this population. Round your answers to four decimal places.arrow_forward了 * 00 R Frequency cc.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_842675_1&course_id%=_859154_1&content_id%3_19492605_1&step * Question Completion Status: QUESTION 1 The following histogram represents the number of body piercings for students in a statistics class. 40 0 2 4. 9 Number of Piercings 8 a. Is this graph symmetric or skewed? b. For this graph, is mean or median the best choice for the measure of center? c. For this graph, is standard deviation or IQR the best choice for the measure of variation? d. For this graph, the mean expected to be (higher than, lower than, or about the same as?) the median. QUESTION 2 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save 2 étv MacBook Air DD F7 F8 08 F 4 F5 F3 2$ 4 #3 9. 6. 5. |arrow_forward
- com/static/nb/ui/evo/index.html?deploymentld%3D57211919418147002668187168&elSBN=9781337114264&id%3D900392331&snapshotld%3D19233498 GE MINDTAP Q Search this course -ST 260 Save Submit Assignment for Grading ons Exercise 08.46 Algorithmic « Question 10 of 10 Check My Work (4 remaining) eBook The 92 million Americans of age 50 and over control 50 percent of all discretionary income. AARP estimates that the average annual expenditure on restaurants and carryout food was $1,876 for individuals in this age group. Suppose this estimate is based on a sample of 80 persons and that the sample standard deviation is $550. Round your answers to the nearest whole numbers. a. At 99% confidence, what is the margin of error? b. What is the 99% confidence interval for the population mean amount spent on restaurants and carryout food? C. What is your estimate of the total amount spent by Americans of age 50 and over on restaurants and carryout food? million d. If the amount spent on restaurants and…arrow_forwardCan anyone please send me the normal standard tablearrow_forwardnumber 8.arrow_forward
- Ims.jazanu.edu.sa/bbcswebdav/pid-796204-dt-content-rid-22853746 1/courses/362MATH-3 31_08768 01 501 20212/032%281%29 doz view-source:https://.. 9 Google bily YouTube Gmail M Junalg ul 100% 1 / 1 | An automobile weighing 4500 lb is driven down a 5° incline at a speed of 60 mi/h when the brakes are applied, causing a constant total braking force (applied by the road on the tires) of 1800 lb. Determine the distance trav- eled by the automobile as it comes to a stop. 5°arrow_forwardPLEASE DO ALL THE PARTS OF THE QUESTION AS ITS ALL FROM ONE!arrow_forwardA statistics professor for STAT 250 wants to investigate how long it takes students to complete Exam 1. The times that it took all 715 STAT 250 students in Spring 2022 were recorded in the data set “Time to Complete Exam 1” found in StatCrunch. The time is recorded in minutes. A student who completed the exam in 50:30 (50 minutes and 30 seconds) would be recorded as 50.5 minutes Column Mean Std. dev. Sample 26 (Time) 43.93 7.14 1) Does the mean calculated come from a sampling distribution that is approximately Normal? Check all three conditions of the Central Limit Theorem using one complete sentence for each condition to answer this question 2) Calculate the probability that, in a random sample of 26 students, the mean time to complete Exam 1 is 50 minutes or more. Complete this part by standardizing and using the Standard Normal Table to obtain this probability. Show all work and type all calculations.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage LearningHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
- Big Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtMathematics For Machine TechnologyAdvanced MathISBN:9781337798310Author:Peterson, John.Publisher:Cengage Learning,

Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill

College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning

Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL

Big Ideas Math A Bridge To Success Algebra 1: Stu...
Algebra
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:Houghton Mifflin Harcourt

Mathematics For Machine Technology
Advanced Math
ISBN:9781337798310
Author:Peterson, John.
Publisher:Cengage Learning,