Question: A sample data set produced the following information. n = 10, x = 100, y = 220, xy = 3680 x2 = 1140, and y2

A sample data set produced the following information.
n = 10, ∑x = 100, ∑y = 220, ∑xy = 3680
∑x2 = 1140, and ∑y2 = 25,272
a. Calculate the linear correlation coefficient r.
b. Using a 2% significance level, can you conclude that p is different from zero?

Step by Step Solution

★★★★★

3.47 Rating (173 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a From the solution to Exercise 1336 SS xx 140 SS yy 20432 and SS xy 1480 r SS xy SS xx SS ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

492-M-S-L-R (3681).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

A sample data set produced the following information. n = 12, x = 66, y = 588, xy = 2244 x2 = 396, and y2 = 58,734 a. Calculate the linear correlation coefficient r. b. Using a 1% significance level,...

Using the data in Exercise I, can you conclude that the pH differs with the amount of gypsum added? Use the a = 0.05 level of significance.

The yield curve is upward-sloping. Can you conclude that investors expect short-term interest rates to rise? Why or why not?

The following information is obtained from a sample data set. n = 10, x = 100, y = 220, xy = 3680, x2 = 1140 Find the estimated regression line.

The following information is obtained from a sample data set. N = 10, x = 100, y = 220, xy = 3680, x2 = 396, and y2 = 25,272 Find the values of se and r2.

8:42 B & 6 9 4 1 98% A sample data set produced the following information. Find the coefficient of determination of the following data. n = 25 [xy = 350 [X = 12 x2 = 150 [ y = 8 [ y2 = 130. Choose...

A. You calculated an 'r' of 0.78 for a pair of variables that have 8 cases. 1) What is the strength? ____________ 2) What is the direction? _______________ For alpha = .05: 3) What is the critical...

2) A line has equation 0.5. Pick five distinct x-values, use the equation to compute the corresponding y-values, and plot the five points obtained. Give the value of the slope of the line; give the...

Set Student Name: 1. Describe the relationship between two variables that have a correlation coefficient value: a. Near -1 b. Near 0 c. Near 1 2. Data was collected where a weightlifter was asked to...

Instuctor's Annotated Edition TENTH EDITION Understandable Statistics Concepts and Methods Charles Henry Brase Regis University Corrinne Pellillo Brase Arapahoe Community College Australia Brazil...

Give examples of companies offering cloud services.

Calculate the kinetic energy of rotation of the earth, and compare it with the kinetic energy of motion of the earths center of mass about the sun. Assume the earth to be a homogeneous sphere of mass...

Which of the following are preference items or adjustments for purposes of the individual alternative minimum tax? Interest on qualified private - activity municipal bonds issued in 2 0 0 8 Excess of...

Problem 111C Public accounting firms acting as auditors of companies are very careful to ensure that all of the companys accounts payable are recorded in the proper period. In other words, they want...

What name is given to a table that lists all of the values that a discrete random variable x can assume and their corresponding probabilities?

The parameter/parameters of the Poisson probability distribution is/are a. b. and x c. and e

Let x be a continuous random variable. What is the probability that x assumes a single value, such as a?

2. (6 pts) A major piece of your company's manufacturing equipment has failed and you need to buy a replacement. There are three alternatives. Which one should be selected based on rate of return...

Chapter 5 Assignment Seved 9 Your landscaping company can lease a truck for $7,300 a year (paid at year-end) for 5 years. It can instead buy the truck for $32,000. The truck will be valueless after 5...

Suppose that you are flipping 5 biased coins independently from one another. Theprobability of a coin landing HEAD is 0.6, and the probability of a coin landing TAILis 0.4. (a) What is the...