↓ Sixty statistics students are randomly selected. For each of them, the time of day they filled out the survey and num of family members is measured. a. For this sample of paired data, what does r represent, and what does p represent? b. Without doing any research or calculations, estimate the value of r. c. Does r change if time of day is converted to minutes rather than hours? A. r is a statistic that represents the value of the linear correlation coefficient computed from the paired sample data, and p is a parameter that represents the value of the linear correlation coefficient that would be computed by using all of the paired data in the population of all statistics students. OB. r is a statistic that represents the proportion of the variation in number of family members that can be explained by variation in the time of day they filled out the survey, and p is a parameter that represents the value of the linear correlation coefficient that would be computed by using all of the paired data in the population of all statistics students. OC. r is a statistic that represents the value of the linear correlation coefficient computed from the paired sample data, and p is a parameter that represents the proportion of the variation in number of family members that can be explained by variation in the time of day they filled out the survey. OD. r is a parameter that represents the value of the linear correlation coefficient that would be computed by using all of the paired data in the population of all statistics students, and p is a statistic that represents the value of the linear correlation coefficient computed from the paired sample data. b. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal rounded to one decimal place as needed.) A. The value of r is estimated to be because it is likely that there is no correlation between the number of family members and the time of day they filled out the survey.
↓ Sixty statistics students are randomly selected. For each of them, the time of day they filled out the survey and num of family members is measured. a. For this sample of paired data, what does r represent, and what does p represent? b. Without doing any research or calculations, estimate the value of r. c. Does r change if time of day is converted to minutes rather than hours? A. r is a statistic that represents the value of the linear correlation coefficient computed from the paired sample data, and p is a parameter that represents the value of the linear correlation coefficient that would be computed by using all of the paired data in the population of all statistics students. OB. r is a statistic that represents the proportion of the variation in number of family members that can be explained by variation in the time of day they filled out the survey, and p is a parameter that represents the value of the linear correlation coefficient that would be computed by using all of the paired data in the population of all statistics students. OC. r is a statistic that represents the value of the linear correlation coefficient computed from the paired sample data, and p is a parameter that represents the proportion of the variation in number of family members that can be explained by variation in the time of day they filled out the survey. OD. r is a parameter that represents the value of the linear correlation coefficient that would be computed by using all of the paired data in the population of all statistics students, and p is a statistic that represents the value of the linear correlation coefficient computed from the paired sample data. b. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal rounded to one decimal place as needed.) A. The value of r is estimated to be because it is likely that there is no correlation between the number of family members and the time of day they filled out the survey.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Sixty statistics students are randomly selected. For each of them, the time of day they filled out the survey and num
of family members is measured.
a. For this sample of paired data, what does r represent, and what does p represent?
b. Without doing any research or calculations, estimate the value of r.
c. Does r change if time of day is converted to minutes rather than hours?
A. r is a statistic that represents the value of the linear correlation coefficient computed from the paired
sample data, and p is a parameter that represents the value of the linear correlation coefficient that would be
computed by using all of the paired data in the population of all statistics students.
OB. r is a statistic that represents the proportion of the variation in number of family members that can be explained
by variation in the time of day they filled out the survey, and p is a parameter that represents the value of the
linear correlation coefficient that would be computed by using all of the paired data in the population of all
statistics students.
OC. r is a statistic that represents the value of the linear correlation coefficient computed from the paired
sample data, and p is a parameter that represents the proportion of the variation in number of family members
that can be explained by variation in the time of day they filled out the survey.
OD. r is a parameter that represents the value of the linear correlation coefficient that would be computed by using
all of the paired data in the population of all statistics students, and p is a statistic that represents the value of
the linear correlation coefficient computed from the paired sample data.
b. Select the correct choice below and fill in the answer box to complete your choice.
(Type an integer or a decimal rounded to one decimal place as needed.)
A. The value of r is estimated to be
because it is likely that there is no correlation between the number of
family members and the time of day they filled out the survey.
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