Question: Using the data in Example 8.2.1: (a) Compute r, the coefficient of correlation. (b) Would you say that the variables X and Y are independent?

Using the data in Example 8.2.1:
(a) Compute r, the coefficient of correlation.
(b) Would you say that the variables X and Y are independent? Use α = 0.05.
(c) State any assumptions you have made in solving the problem.

Step by Step Solution

★★★★★

3.48 Rating (164 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a is 9964 b At 95 confidence level we got the z is 703... 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)

610-M-S-L-R (5270).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Using formula (3.2), calculate the Spearman rank correlation coefficient for the data in Example 14. 14 (p. 697).Recall that formula (3.2) is equivalent to the definition formula (3.1) and that rank...

Using the data in Exercise 24, compute the silhouette coefficient for each point, each of the two clusters, and the overall clustering.

In Example 6.8, we introduced the concept of a censored experiment in which n components are put on test and the experiment terminates as soon as r of the components have failed. Suppose component...

The table below gives the bushels of corn per acre resulting from the use of various amounts of fertilizer in pounds per acre: n BUSHELS OF CORN PRODUCED (Y) AMOUNT FERTILIZER USED (X) n y x 1 40 6 2...

EXERCISE 23 PEARSON'S PRODUCTMOMENT CORRELATION COEFFICIENT STATISTICAL TECHNIQUE IN REVIEW Many studies are conducted to identify relationships between or among variables. The correlational...

JPMA-01726; No of Pages 12 Available online at www.sciencedirect.com ScienceDirect International Journal of Project Management xx (2015) xxx - xxx www.elsevier.com/locate/ijproman Does Agile work? A...

We have already determined the expected returns and standard deviations for both Supertech and Slowpoke. In addition, we calculated the deviation of each possible return from the expected return for...

You want to assess whether countries with more environmental organizations have lower rates of deforestation (forest loss). You measure environmental organizations as the rate of non-governmental...

Need help :- huhuhu A study was conducted on the effect of water temperature and time in solution on the amount of dye absorbed by a certain kind of fabric. A standard amount of dye (200...

QUESTION 1 The following data on the weekly online gaming time (in hours) of a sample of college students is as follows: 5, 11, 25, 19, 18, 20, 27, 13, 8, 10, 15, 19, 18, 9, and 12. Compute the...

World Gourmet Coffee Company (WGCC) is a distributor and processor of different blends of coffee. The company buys coffee beans from around the world and roasts, blends, and packages them for resale....

Briefly describe the five stages in the capita- budgeting process.

Which one of the following statements generally applies to the credit period? Question 6 options: The larger the account size, the longer the credit period. The greater the competition, the shorter...

Discuss the factors affecting marketing environment.

In The Effect of Nozzle Design on the Stability and Performance of Turbulent Water Jets (Fire Safety Journal, Vol. 4, August 1981), C. Theobald describes an experiment in which a shape measurement...

In Design and Analysis of Experiments, 5th edition (John Wiley & Sons, 2001), D. C. Montgomery describes an experiment that determined the effect of four different types of tips in a hardness tester...

An article in the American Industrial Hygiene Association Journal (Vol. 37, 1976, pp. 418422) describes a field test for detecting the presence of arsenic in urine samples. The test has been proposed...

prepare an alphabetical list of all Economics majors that entered the university in 2 0 2 1 the list should only display first and last names

What's the taxable equivalent yield on a municipal bond with a yield to maturity of 6.25 percent for an investor in the 25 percent marginal tax bracket? (Round your answer to 2 decimal places.)...

Foreign Cars List Price in K Sale Price in K Days to Sell Total 9445.6 8966.0 11252.0 Mean 47.2 44.8 56.3 Median 49.0 45.4 53.0 Range (Max-Min) 87.3 87.1 102.0 St.Dev 26.0993 26.0304 30.9969 Co.Eff....