ANOVA

 

An ANOVA is when we want to run a means test on more than 2 groups. However, the same basic structure of the hypothesis testing that we have done remains.

Using the hockey data, test if there is a difference between the true average number of goals scored by the different divisions. Second, test if there is a difference between the actual mean number of goals allowed by teams of different quality (where teams with at least 100 points is the top tier, those with 90-99 are the middle tier, and those with less than 90 make up the bottom tier).

If either of these tests show significance, run a multiple comparisons test among the groups. (Note that this is essentially the two sample testing we just did but with an adjustment to ensure that we don’t have inflated error probabilities.) Use a 0.05 significance level for all tests.

As you do this for your own data set, ensure that at least one of the two problems shows significance and requires pairwise comparisons. Unless impossible to avoid, do not use more than 4 groups — there’s nothing that says you can’t, but it’ll make your report much more tedious. Also note that if you only have 2 groups, that’s a two sample independent mean test and not an ANOVA; we did that last assignment, so ensure that you have at least 3 groups in your analysis.

Computer Science week 8 assignment

 

Week 8 Assignment

Instructions

Week 8 Assignment:

In order to complete assignment #8 you will need to answer the below questions. Please complete the questions in a Word document and then upload the assignment for grading. When assigning a name to your document please use the following format (last name_Assignment #8). Use examples from the readings, lecture notes and outside research to support your answers. The assignment must be a minimum of one (1) full page in length with a minimum of two (2) outside sources. Please be sure to follow APA guidelines for citing and referencing source. Assignments are due by 11:59 pm Eastern time on Sunday.

                                  Question Below

Discuss the steps involved in conducting black box testing.

CMIS 102 6383 Introduction to Problem Solving and Algorithm Design

 The third assignment involves writing a Python program to compute the cost of carpeting a room. Your program should prompt the user for the width and length in feet of the room and the quality of carpet to be used. A choice between three grades of carpeting should be given. You should decide on the price per square foot of the three grades on carpet. Your program must include a function that accepts the length, width, and carpet quality as parameters and returns the cost of carpeting that room. After calling that function, your program should then output the carpeting cost.

Your program should include the pseudocode used for your design in the comments. Document the values you chose for the prices per square foot of the three grades of carpet in your comments as well.

You are to submit your Python program as a text file (.py) file. In addition, you are also to submit a test plan in a Word document or a .pdf file. 15% of your grade will be based on whether the comments in your program include the pseudocode and define the values of your constants, 70% on whether your program executes correctly on all test cases and 15% on the completeness of your test report. 

Q) Hash tables (8 points)

This question looks at the behavior of the hash() method in the hash symbol table classes LinearProbingHashST and SeparateChainingHashST. You are given the following list of twelve strings:

  • Erdos
  • eRdos
  • erDos
  • erdOs
  • erdoS
  • erdos
  • Knuth
  • kNuth
  • knUth
  • knuTh
  • knutH
  • knuth

Note carefully which letters are upper case and which are not.

  1. Applying the hash method in either of the classes named above (it’s the same method in both) and which we often discussed in class, write two lists. The first contains each string and its hash value when the table size is 29 and the second contains each string and its hash value when the table size is 30.
  2. Assuming the strings are inserted into a linear probing hash table in the order given, what is the index where each ends up in each table? Again write two lists. The first contains each string and the index where it ends up in the table of length 29. The second contains each string and the index where it ends up in the table of length 30. Please list the strings in increasing order by index, not in alphabetical order by string.

As an example of what the lists should look like, here are the lists for a table of size 31.

module 5

 

Module 05 Content

  1. You are hired as a network consultant for the ACME Widgets Company.
    Follow the instructions in the attached template.

    Module 5 Project template.docx

    You will use the existing Acme Widgets logical domain design and add one more domain. You will also explore DNS testing procedures.
    Submit your completed template to the dropbox.
    Submit your completed assignment by following the directions linked below. Please check the Course Calendar for specific due dates.

Discussion 7 (commerce)

250 words+

Wilderness Trailhead, Inc. (WTI) is a retailer that offers hiking, rock-climbing, and survival gear for sale on its Web site. WTI offers about 1200 different items for sale and has about 1000 visitors per day at its Web site. The company makes about 200 sales each day on its site, with an average transaction value of $372. WTI sells products primarily through its Web site to customers in the United States and Canada. WTI ships orders from its two warehouses: one in Vancouver, British Columbia, and another in Shoreline, Washington. WTI accepts four major credit cards and processes its own credit card transactions. It stores records of all transactions on a database server that shares a small room with the Web server computer at WTI’s main offices in a small industrial park just outside Bellingham, Washington. Outline and propose a security policy for the WTI database server. Be sure to consider the threats that exist because of that server stores customer credit card numbers.

Discussion post 2 we 4

Read classmates post and respond with 100 words:

We must understand the the guidelines before coding. Radiology guidlines consits of Professional, Technical, and Global. Radiology is used to diagnose and treat patients. Technical is used for diagnostic imaging examinationsand administering radiation theraphy treatments. Last but not lease is Global and global is reported with a CPT radiology code. An example of Professional can be a x-ray. An example of the Technical is really the equipment, film, and supplies. Then last but not lease the the global is both professional and technical componet which is both equipment and staff who reports. 

Carol J. Buck, Saunders (2022).  Step-by-Step Medical Coding, by Carol J. Buck, Saunders

program java

1> Discuss the concept of parameters. What are parameters for? What is the difference between formal parameters and actual parameters? Give an example in Java code that illustrates formal parameters and actual parameters.

2>

attached programming file