Listed below are the lead concentrations measured in different Ayurveda medicines. (Ayurveda is a traditional medical system commonly used in India). Find the mean and standard deviation of the sample. Round to two,decimal places. 3.0 6.5 6.0 5.5 20.5 7.5 12.0 20.5 11.5 17.5 Mean = Round to TWO decimal places. BE CAREFUL ROUNDING! Standard deviation Round to TWO decimal places. BE CAREFUL ROUNDING! %3D

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
These two please
Listed below are the lead concentrations measured in different Ayurveda medicines. (Ayurveda is a
traditional medical system commonly used in India). Find the mean and standard deviation of the
sample. Round to two,decimal places.
3.0
6.5
6.0
5.5
20.5
7.5
12.0
20.5 11.5
17.5
outer
Mean =
Round to TWO decimal places. BE CAREFUL ROUNDING!
Standard deviation =
Round to TWO decimal places. BE CAREFUL ROUNDING!
Transcribed Image Text:Listed below are the lead concentrations measured in different Ayurveda medicines. (Ayurveda is a traditional medical system commonly used in India). Find the mean and standard deviation of the sample. Round to two,decimal places. 3.0 6.5 6.0 5.5 20.5 7.5 12.0 20.5 11.5 17.5 outer Mean = Round to TWO decimal places. BE CAREFUL ROUNDING! Standard deviation = Round to TWO decimal places. BE CAREFUL ROUNDING!
Use the data as given in the problem and answer the following questions. The data shows the exam
score and the time in minutes that a student spent on the exam. UPLOAD YOUR RESPONSE to
Canvas.
Paired Data
x (Exam Score)
95
80
92
61
83
y (Time in Minutes)86
75
95
67
55
80
Make sure to answer all the questions.
1. Create a scatter gram. (I suggest that the x-axis range from 60 to 100 in increments of 5 and the
y-axis should start from 50 and go to 100 in increments of 5)
2. Find correlation coefficientr (Round to three digits.)
3. Use the Critical Value for Correlation Coefficient Table to determine if there is evidence for a
linear correlation. Assume a = 0.5 (Write down the critical value from the table and answer yes or
no)
4. Find the regression equation. (round coefficients to three decimal places)
5. Graph the regression equation on your scatter plot.
6. If a student's exam score (x) is 89, what does the least-squares equation forecast for the minutes
she spent on the exam (y)?
75
Transcribed Image Text:Use the data as given in the problem and answer the following questions. The data shows the exam score and the time in minutes that a student spent on the exam. UPLOAD YOUR RESPONSE to Canvas. Paired Data x (Exam Score) 95 80 92 61 83 y (Time in Minutes)86 75 95 67 55 80 Make sure to answer all the questions. 1. Create a scatter gram. (I suggest that the x-axis range from 60 to 100 in increments of 5 and the y-axis should start from 50 and go to 100 in increments of 5) 2. Find correlation coefficientr (Round to three digits.) 3. Use the Critical Value for Correlation Coefficient Table to determine if there is evidence for a linear correlation. Assume a = 0.5 (Write down the critical value from the table and answer yes or no) 4. Find the regression equation. (round coefficients to three decimal places) 5. Graph the regression equation on your scatter plot. 6. If a student's exam score (x) is 89, what does the least-squares equation forecast for the minutes she spent on the exam (y)? 75
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman