Author Question: Given the partially completed ANOVA table below, the test statistic for determining if there is any ... (Read 339 times)

jessicacav

  • Hero Member
  • *****
  • Posts: 558
Given the partially completed ANOVA table below, the test statistic for determining if there is any blocking effect is F = 4.38.
 
  Source SS df MS F
  Between blocks 387 9
  Between samples 422 3
  Within samples 265 27
   Total 1374 39
 
   Indicate whether the statement is true or false

Question 2

Suppose that you have a data set of 512 observations and the data values range from 36 to 187. What classes would you choose for this data set? Explain why you would choose these values.
 
  What will be an ideal response?



amandanbreshears

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

TRUE

Answer to Question 2

For n=512 values, 9 classes would be about the right number of classes based on the 2k  n rule. Then the class width should be about (187-36 )/9 = 16.8, which should be rounded to 20. So the classes should start at 20 or 30 to be low enough to contain the lowest value. So one way to do the classes is:
20 to < 40
40 to < 60
60 to < 80
80 to < 100
100 to < 120
120 to < 140
140 to < 160
160 to < 180
180 to < 200
This is 9 classes, all inclusive, mutually exclusive, equal width, and contains all the data values.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

For a complete list of videos, visit our video library