Question 24 (1 point) Find the correlation coefficient. A group of persons filled in a questionnaire...
Question 24 (1 point)
Find the correlation coefficient.
A group of persons filled in a questionnaire their age and the
number of states they visited. The results are recorded in the
table below.
Question 24 options:
|
-1.3 |
|
|
0.6 |
|
|
-0.6 |
|
|
1.3 |
Homework Answers
As we expect, the number of states visited should increase with the increase in age. Hence,
Correlation coefficient = 0.6
Option B is correct.
Add Answer to:
Question 24 (1
point)
Find the correlation coefficient.
A group of persons filled in a questionnaire...
Question 24 (4 points) If the correlation coefficient r is equal to 0.57, find the coefficient...
Question 24 (4 points) If the correlation coefficient r is equal to 0.57, find the coefficient of nondetermination. 1) 0.68 2) 0.75 3) 0.45 O4) 0.32
What is the correlation coefficient when the point (10.2) is excluded? r = _ (round to...
What is the correlation coefficient when the point (10.2) is
excluded?
r = _ (round to three decimal places as needed.)
% 10.2.11 Question Help 104• Refer to the accompanying scatterplot. a. Examine the pattern of all 10 points and subjectively determine whether there appears to be a strong correlation between x and y. b. Find the value of the correlation coefficient r and determine whether there is a linear correlation. c. Remove the point with coordinates (1,10) and find...
A correlation tests whether differences exist between two variables. Question 1 options: a) True b) False...
A correlation tests whether differences exist between two variables. Question 1 options: a) True b) False Question 2 (1 point) You have tested to find whether a relationship exists between hours of sleep the night before an exam and grade on the exam. You have a participant pool of n = 30, df = 28. Your hypothesis is that a significant relationship will exist, where those with more hours of sleep receive higher grades on the exam. This is a...
24. (Correlation) A researcher wants to determine if there is a linear relationship between height and...
24. (Correlation) A researcher wants to determine if there is a linear relationship between height and weight. The following table represents the data collected. Display the data in a scatter plot on your calculator, draw a quick sketch below. Then find the linear regression and put the line of best fit on the sketch. Then state the value for the correlation coefficient and determine if this is significant correlation or no correlation using the table in the back of the...
I want the covariance and coefficient correlatio...
I want the covariance and coefficient correlation plz with
explanations thank you
1 point) Canadians who visit the United States often buy liquor and cigarettes, which are much cheaper in the United States. However, there are limitations. Canadians visiting in the United States for more than 2 days are aliowed to bring into Canada one bottle of liquor and one carton of cigareoes. A Canada Customs agert has produced the following joint probability distribution of the number of bottles of...
1). Decide whether there is a positive correlation, negative correlation, or no correlation in the following...
1). Decide whether there is a positive correlation, negative correlation, or no correlation in the following pairs of variables: A) Amount of alcohol consumed and speed of reaction to a suddenly appearing stimulus. B) Height and intelligence. C) Number of calories consumed and weight. D) How much pain a person is in and happiness. E) The rating of physical attractiveness of husbands compared to the rating of physical attractiveness of their respective wives. F) IQ scores and the number of...
Linear Regression and Correlation Activity Recently, the annual number of driver deaths per 100,000 for the...
Linear Regression and Correlation Activity Recently, the annual number of driver deaths per 100,000 for the selected age groups was as follows: Age 16 - 19 20-24 25-34 35 - 54 55 - 74 75+ Number of Driver Death per 100,000 38 36 24 20 18 28 1. For each age group, list out the midpoints of the intervals for the x values. (For the 75+ group, use 80. 2. Find the correlation using the formular = η Σχy)-(Σχ)(Σy) Vin...
Question 1 (1 point) Suppose Best Buy would like to know if the age of a...
Question 1 (1 point) Suppose Best Buy would like to know if the age of a customer affects the brand of digital camera he or she purchases to help design a new promotional campaign. The data will show the frequency with which people, categorized by their age groups, purchased various camera brands. To determine if Camera Brand and Age Group are dependent, what are the appropriate hypotheses? 1) Ho: Camera Brand and Age Group are not related to each other....
Oo Question 3 1 pts Find the value of the linear correlation coefficient r for the...
Oo Question 3 1 pts Find the value of the linear correlation coefficient r for the given data: 62 53 64 52 52 f 58 V 158 176 151 164 164 174 162 0 -0.775 0 -0.081 O 0.754 ОО Question 4 1 pts
Question 22 (1 point) The monetary aggregate M1 refers to: O O all outstanding notes and...
Question 22 (1 point) The monetary aggregate M1 refers to: O O all outstanding notes and coin. notes and coin in circulation. notes and coin in circulation + demand deposits. notes and coin in circulation + demand deposits + travelers checks. Save Question 23 (1 point) The primary instrument for controlling money supply: is credit and interest rate ceilings. is open market operations. is the discount rate. is the reserve requirement. Save Question 24 (1 point) Refer to the table...
Question 24 (4 points) If the correlation coefficient r is equal to 0.57, find the coefficient of nondetermination. 1) 0.68 2) 0.75 3) 0.45 O4) 0.32
What is the correlation coefficient when the point (10.2) is
excluded?
r = _ (round to three decimal places as needed.)
% 10.2.11 Question Help 104• Refer to the accompanying scatterplot. a. Examine the pattern of all 10 points and subjectively determine whether there appears to be a strong correlation between x and y. b. Find the value of the correlation coefficient r and determine whether there is a linear correlation. c. Remove the point with coordinates (1,10) and find...
24. (Correlation) A researcher wants to determine if there is a linear relationship between height and weight. The following table represents the data collected. Display the data in a scatter plot on your calculator, draw a quick sketch below. Then find the linear regression and put the line of best fit on the sketch. Then state the value for the correlation coefficient and determine if this is significant correlation or no correlation using the table in the back of the...
I want the covariance and coefficient correlation plz with
explanations thank you
1 point) Canadians who visit the United States often buy liquor and cigarettes, which are much cheaper in the United States. However, there are limitations. Canadians visiting in the United States for more than 2 days are aliowed to bring into Canada one bottle of liquor and one carton of cigareoes. A Canada Customs agert has produced the following joint probability distribution of the number of bottles of...
1). Decide whether there is a positive correlation, negative correlation, or no correlation in the following pairs of variables: A) Amount of alcohol consumed and speed of reaction to a suddenly appearing stimulus. B) Height and intelligence. C) Number of calories consumed and weight. D) How much pain a person is in and happiness. E) The rating of physical attractiveness of husbands compared to the rating of physical attractiveness of their respective wives. F) IQ scores and the number of...
Linear Regression and Correlation Activity Recently, the annual number of driver deaths per 100,000 for the selected age groups was as follows: Age 16 - 19 20-24 25-34 35 - 54 55 - 74 75+ Number of Driver Death per 100,000 38 36 24 20 18 28 1. For each age group, list out the midpoints of the intervals for the x values. (For the 75+ group, use 80. 2. Find the correlation using the formular = η Σχy)-(Σχ)(Σy) Vin...
Question 1 (1 point) Suppose Best Buy would like to know if the age of a customer affects the brand of digital camera he or she purchases to help design a new promotional campaign. The data will show the frequency with which people, categorized by their age groups, purchased various camera brands. To determine if Camera Brand and Age Group are dependent, what are the appropriate hypotheses? 1) Ho: Camera Brand and Age Group are not related to each other....
Oo Question 3 1 pts Find the value of the linear correlation coefficient r for the given data: 62 53 64 52 52 f 58 V 158 176 151 164 164 174 162 0 -0.775 0 -0.081 O 0.754 ОО Question 4 1 pts
Question 22 (1 point) The monetary aggregate M1 refers to: O O all outstanding notes and coin. notes and coin in circulation. notes and coin in circulation + demand deposits. notes and coin in circulation + demand deposits + travelers checks. Save Question 23 (1 point) The primary instrument for controlling money supply: is credit and interest rate ceilings. is open market operations. is the discount rate. is the reserve requirement. Save Question 24 (1 point) Refer to the table...
Most questions answered within 3 hours.
-
The following
sentences are choppy. Improve their coherence by supplying
transitions to make them effective sentences....
asked 7 minutes ago -
What is the frequency of the second hand of a clock, assuming it
is keeping correct...
asked 12 minutes ago -
Determine Heat of reaction (Hrxn) for: 2 C (s, graphite) + 3 H2
(g) ------> C2H6...
asked 31 minutes ago -
A 270 pF capacitor is charged to a potential difference of 120
V, and the charging...
asked 32 minutes ago -
1.8 zyLab training: Basics (Java)
While the zyLab platform can be used without training, a bit...
asked 35 minutes ago -
The figure below shows an electron passing between two charged
metal plates that create an 100...
asked 37 minutes ago -
A) Calculate the final temperature, in degrees Celsius,
if n and V do not change.
A...
asked 40 minutes ago -
Find the 60th percentile of a standard normal
distribution(3 decimal places) on StatCrunch
asked 54 minutes ago -
This week we discuss the properly classified Balance Sheet.
Recall that the value of assets is...
asked 53 minutes ago -
Determine the molar concentration of Cl- ions in a 1.00 M
solution of AgCl2- with no...
asked 59 minutes ago -
You work for a defense company in their characterization
department. Your superior brings you 0.5 g...
asked 1 hour ago -
An elevator has a placard stating that the maximum capacity is
1600lb—10 passengers. So, 10 adult...
asked 1 hour ago