Question

In: Statistics and Probability

Use the first six digits of your phone number (x) and the first six digits of...

Use the first six digits of your phone number (x) and the first six digits of your student number (y) to form six pairs of data (x,y).

a) Excel Obtain a scatter plot of the data. Print this plot. b) Excel Obtain and interpret the linear correlation coefficient. c) Would you proceed to analyze this data using the method of least squares regression? Explain why or why not.

phone number digits:- 289775

student number digits:- 642045

Solutions

Expert Solution

a) Excel Obtain a scatter plot of the data. Print this plot.

The required scatter plot of the data by using excel is given as below:

From above scatter plot, it is observed that there is a negative linear relationship exists between the given two variables x and y.

b) Excel Obtain and interpret the linear correlation coefficient.

The linear correlation coefficient for the given data by using excel is given as below:

x

y

x

1

y

-0.663338607

1

The linear correlation coefficient is given as -0.6633, this means there is a considerable negative linear relationship or association exists between the given two variables x and y.

c) Would you proceed to analyze this data using the method of least squares regression? Explain why or why not.

We would not proceed to analyze this using the method of least squares regression, because we do not get the strong linear association or correlation coefficient between given two variables and sample size is also very small (n = 6). So, least square regression line would not be statistically significant for this data.

orchestra answered 1 year ago
Next > < Previous

Related Solutions

i need a phone number with 9 digits but those digits should use only one time...
i need a phone number with 9 digits but those digits should use only one time and be dividable by 3-5-7-11-13-17 numbers.the phone number must not contain 0. Write a code with c sharp. note: answer is 869143275. i need to find this phone number
What is the number of permutations of the six digits 123456 in which the strings 123,...
What is the number of permutations of the six digits 123456 in which the strings 123, 234, 345, 456, 654, 543, 432, 321 don't appear?
What is the probability that seven-digit phone number has one or more repeated digits ? The...
What is the probability that seven-digit phone number has one or more repeated digits ? The leading number can not be zero (0).
A random number X is generated by reporting the sum of the digits on two randomly...
A random number X is generated by reporting the sum of the digits on two randomly chosen ping-pong balls, one from a bucket of two balls labeled “0” and “1” and one from a bucket of three balls labeled “0”, “1”, and “2”. Find the probability mass function of X by specifiying the values x that X can take and the probability p(x) = P (X = x) of each of those values. Please explain how you arrived at the...
a. For the experiment in which the number of computers in use at a six -...
a. For the experiment in which the number of computers in use at a six - computer lab is observed, let B, C be the events defined as B = {3, 4, 5, 6}, and C = {1, 3, 5}. Give the event (B ^ C) using set notation (i.e using { } ). b. Suppose that the probability of a person getting a certain rare disease is 0.0004 . Consider a town of 10,000 people. What is the approximate...
a. For the experiment in which the number of computers in use at a six -...
a. For the experiment in which the number of computers in use at a six - computer lab is observed, let B, C be the events defined as B = {3, 4, 5, 6}, and C = {1, 3, 5}. Give the event (B ^ C) using set notation (i.e using { } ). b. Suppose that the probability of a person getting a certain rare disease is 0.0004 . Consider a town of 10,000 people. What is the approximate...
Let X = the number of nonzero digits in a randomly selected zip code. What are...
Let X = the number of nonzero digits in a randomly selected zip code. What are the possible values of X? Is X discrete or continuous? Give three possible outcomes and their associated X values. A college professor always finishes his lectures within 2 minutes after the bell rings to end the period and the end of the lecture. Let X = the time that elapses between the bell and the end of the lecture. What could be the values...
When all of the entries are valid, display an account number that shows first 3 digits of the telephone number and first two letters of the last name.
When all of the entries are valid, display an account number that shows first 3 digits of the telephone number and first two letters of the last name. using name John Smith phone number 1234567893 Using net beans take the first two letters from smith and first 3 numbers from the phone number and combine them to one line like this sm123.
Find the number of passwords that use each of the digits 3,4,5,6,7,8,9 exactly once. IN how...
Find the number of passwords that use each of the digits 3,4,5,6,7,8,9 exactly once. IN how many of the passwords: 1. are the four odd digits consecutive? 2. are no two odd digits consecutive? 3. are the first three digits even? 4. are the three even digits consecutive?
Write a java program to accept a telephone number with any number of letters. The output should display a hyphen after first 3 digits and subsequently a hyphen (-) after very four digits.
Write a java program to accept a telephone number with any number of letters. The output should display a hyphen after first 3 digits and subsequently a hyphen (-) after very four digits. Also, modify the program to process as many telephone numbers as the user wantscode optimization: no unnecessary variables , if statements and counterssample output screen shown with 3 cases(atleast one with blank spaces ect.)Descriptive block and inline comments include.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT