10/25/22, 10:07 PM M9: Exam - Requires Respondus LockDown Browser + Webcam: Introduction to Statistics-2021- Key
M9: Exam - Requires Respondus
LockDown Browser + Webcam
Due No due date Points 35 Questions 4
Time Limit 90 Minutes
Requires Respondus LockDown Browser
Instructions
You may only have the following items when taking an exam: computer, 1-2
pieces of blank scratch paper, a pen/pencil, and a calculator.
You may ONLY use the equation sheets that are provided WITHIN the exam.
The use of printed versions will be considered a violation of the Academic
Integrity Policy.
problems. This is especially important in subjects like proof-based mathematics.Calculation and Accuracy: Mathematical exams test a student’s ability to perform accurate calculations and apply mathematical
principles in the correct sequence to reach a solution.Understanding of Concepts: Beyond solving problems, mathematics exams test students’ conceptual understanding of core topics, such as algebra,
geometry, calc
Attempt History
Attempt Time Score
LATEST Attempt 1 24 minutes 0 out of 35 *
* Some questions not yet graded
Score for this quiz: 0 out of 35 *
Submitted Oct 25 at 8:52pm
This attempt took 24 minutes.
Question 1 Not yet graded / 5 pts
You may find the following files helpful throughout the
exam:
Statistics_Equation_Sheet
standard normal table
This study source was downloaded by 100000899931994 from CourseHero.com on 11-29-2025 06:49:15 GMT -06:00
1/6
, 10/25/22, 10:07 PM M9: Exam - Requires Respondus LockDown Browser + Webcam: Introduction to Statistics-2021- Key
t-table
Critical_values_chart
Suppose you have 45 data points and you calculate the
sample correlation coefficient and find that r = .32. Can you
be 95% confident that a linear relation exists between the
variables? If so, is the relation positive or negative? Justify
you answer.
Your Answer:
Side notes:
45 data points
r=.32
95%confident
relation positive or negative
problems. This is especially important in subjects like proof-based mathematics.Calculation and Accuracy: Mathematical exams test a student’s ability to perform accurate calculations and apply mathematical
principles in the correct sequence to reach a solution.Understanding of Concepts: Beyond solving problems, mathematics exams test students’ conceptual understanding of core topics, such as algebra,
geometry, calc
n=45
value from the chart is .29396
/r/=.32 ( that is supposed to be two straight lines on each
side of the r to be absolute value.
so that being given above its ABOVE .29396 which is like
positive linear relation
Note that for n=45 and 95% we get a value from
the chart of .29396. The absolute of r is |r|=.32,
which is above .29396. So a positive linear
relation exists.
Question 2 Not yet graded / 5 pts
This study source was downloaded by 100000899931994 from CourseHero.com on 11-29-2025 06:49:15 GMT -06:00
2/6
M9: Exam - Requires Respondus
LockDown Browser + Webcam
Due No due date Points 35 Questions 4
Time Limit 90 Minutes
Requires Respondus LockDown Browser
Instructions
You may only have the following items when taking an exam: computer, 1-2
pieces of blank scratch paper, a pen/pencil, and a calculator.
You may ONLY use the equation sheets that are provided WITHIN the exam.
The use of printed versions will be considered a violation of the Academic
Integrity Policy.
problems. This is especially important in subjects like proof-based mathematics.Calculation and Accuracy: Mathematical exams test a student’s ability to perform accurate calculations and apply mathematical
principles in the correct sequence to reach a solution.Understanding of Concepts: Beyond solving problems, mathematics exams test students’ conceptual understanding of core topics, such as algebra,
geometry, calc
Attempt History
Attempt Time Score
LATEST Attempt 1 24 minutes 0 out of 35 *
* Some questions not yet graded
Score for this quiz: 0 out of 35 *
Submitted Oct 25 at 8:52pm
This attempt took 24 minutes.
Question 1 Not yet graded / 5 pts
You may find the following files helpful throughout the
exam:
Statistics_Equation_Sheet
standard normal table
This study source was downloaded by 100000899931994 from CourseHero.com on 11-29-2025 06:49:15 GMT -06:00
1/6
, 10/25/22, 10:07 PM M9: Exam - Requires Respondus LockDown Browser + Webcam: Introduction to Statistics-2021- Key
t-table
Critical_values_chart
Suppose you have 45 data points and you calculate the
sample correlation coefficient and find that r = .32. Can you
be 95% confident that a linear relation exists between the
variables? If so, is the relation positive or negative? Justify
you answer.
Your Answer:
Side notes:
45 data points
r=.32
95%confident
relation positive or negative
problems. This is especially important in subjects like proof-based mathematics.Calculation and Accuracy: Mathematical exams test a student’s ability to perform accurate calculations and apply mathematical
principles in the correct sequence to reach a solution.Understanding of Concepts: Beyond solving problems, mathematics exams test students’ conceptual understanding of core topics, such as algebra,
geometry, calc
n=45
value from the chart is .29396
/r/=.32 ( that is supposed to be two straight lines on each
side of the r to be absolute value.
so that being given above its ABOVE .29396 which is like
positive linear relation
Note that for n=45 and 95% we get a value from
the chart of .29396. The absolute of r is |r|=.32,
which is above .29396. So a positive linear
relation exists.
Question 2 Not yet graded / 5 pts
This study source was downloaded by 100000899931994 from CourseHero.com on 11-29-2025 06:49:15 GMT -06:00
2/6
