The mathematics and statistics examination marks for a group of ten students are shown in Table 8.8.

Question:

(a) Find the correlation coefficient for the two sets of marks.

(b) Place the marks in rank order and calculate the rank correlation coefficient.

(c) The following is a quotation from a statistics text ‘Rank correlation can be used to give a quick approximation to the product moment correlation coefficient’.

Comment on this in the light of your results.

Mathematics Statistics Table 8.8 89 51 73 57 53 49 53 | 50 51 48 49 21 47 46 44 19 42 43 38 43

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Business Statistics Using Excel

ISBN: 9780199659517

2nd Edition

Authors: Glyn Davis, Branko Pecar

See More Books

Question Posted: Nov 28, 2023 02:38 AM

See More Questions

Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...
Hi there , I need help. for my work i need a relevant and well written introduction as well as conclusion to the following below. My work is complete i just need a introduction and conclusion please...
Job descriptions: In determining who will be responsible for what duties, you are to compile a Job description for the Assistant Front Office Manager, The Front Desk Agent, The Reservations Agent and...
The best or alpha project managers spend more time on every process group than other project managers except for which one? A. initiating B. planning C. executing D. monitoring and controlling
Lighthouse Enterprises decided to issue $700,000 of 10-year bonds. The interest rate on the bonds is stated at 10%, payable semiannually. At the time the bonds were sold, the market rate had...
Describe how a plasmid can help a cell.
An office space located within the Dallas Fort-Worth Metroplex currently maintains an annual revenue of $150,000. Operating expenses are $40,000 and the propertys annual debt service is $60,000. In...
Kimball Company has developed the following cost formulas: Material usage: Ym = $80X; r = 0:95 Labor usage (direct): Yl = $20X; r = 0:96 Overhead activity: Yo = $350,000 + $100X; r = 0:75 Selling...
Managerial Accounting: Chapter 6 Cost-Volume-Profit Relationships Outback Outfitters sells recreational equipment. One of the company's products, a small camp stove, sells for $150 per unit. Variable...
You are asked to decide whether the statistics rank correlates with the mathematics rank for seven students provided in Table 8.2. As the information is ranked we use Spearmans correlation...
Table 8.6 indicates the number of vehicles and number of road deaths in ten countries. (a) Construct a scatter plot and comment upon the possible relationship between the two variables. (b) Calculate...
Find r so that the line through (2, 6) and (-4, r) is (a) Parallel to 2x - 3y = 4 (b) Perpendicular to x + 2y = 1.
Below are incomplete financial statements for Hurricane, Incorporated Required: Calculate the missing amounts. Complete this question by entering your answers in the tabs below. Income Statement Stmt...
TBTF Incorporated purchased equipment on May 1, 2021. The company depreciates its equipment using the double-declining balance method. Other information pertaining to the equipment purchased by TBTF...
Coco Ltd. manufactures milk and dark chocolate blocks. Below is the information relating to each type of chocolate. Milk Chocolate Selling price per unit $6 Variable cost per unit $3 Sales mix 4 Dark...
Data related to 2018 operations for Constaga Products, a manufacturer of sewing machines: Sales volume 5,000 units Sales price $300.00 per unit Variable production costs Direct materials 75.00 per...
6. (20 points) Sections 3.1-3.5, 3.7 Differentiate the following functions, state the regions where the functions are analytic. a. cos(e*) b. 1 ez +1 c. Log (z+1) (Hint: To find where it is analytic,...
Using the Arrhenius equation, calculate the effect on k of increases in temperature of 10, 30, and 50 degrees (Celsius) for the following activation energies. Use 300 K (approximately room...
At the beginning of the year, Lam Ltd. had total assets of $800,000 and total liabilities of $500,000. Use this information to answer each of the following independent questions. (a) If Lam's total...
Traffic at a certain intersection is currently 2000 cars per day. A consultant has told the city that traffic is expected to grow at a continuous rate of 5%per year for the next 4 years.
A local bank will lend a customer $1000 on a 2-year car loan as follows: Money to pay for car$1000 Two years' interest at 7%: 2 x 0.07 x 1000140 24 monthly payments = 1140/24 = $47.50$1140 The first...
A local lending institution advertises the "51-50 Club." A person may borrow $2000 and repay $51 for the next 50 months, beginning 30 days after receiving the money. Compute the nominal annual...
Suppose I have computed the cost of carbon per mile for my car at 0 . 0 1 2 per mile. Assume that the interest rate is 4 % and that I drive the car 2 8 , 0 0 0 miles per year. What is the present...
Imagine that in stable growth period, the firm earns ROIC of 10% and has after tax EBIT of 200 and reinvestment $ of 40. What is the steady state growth rate? 20% O 10% 2%
Tanner-UNF Corporation acquired as a long-term investment $160 million of 5.0% bonds, dated July 1, on July 1, 2021. Company management has the positive intent and ability to hold the bonds until...

The mathematics and statistics examination marks for a group of ten students are shown in Table 8.8.

Question:

Mathematics Statistics Table 8.8 89 51 73 57 53 49 53 | 50 51 48 49 21 47 46 44 19 42 43 38 43

Step by Step Answer:

Business Statistics Using Excel

Students also viewed these Business questions