To test whether students in a higher grade level will be less disruptive in class, a school psychologist records the number of documented interruptions during one day of classes from nine local high schools. The sample consisted of nine
(n = 9)
freshman, sophomore, junior, and senior high school classes. The data for each high school class are given in the table.
|
High School Class |
|||
|
Freshman |
Sophomore |
Junior |
Senior |
|
1 |
0 |
3 |
4 |
|
2 |
5 |
6 |
1 |
|
4 |
1 |
0 |
3 |
|
0 |
4 |
4 |
2 |
|
1 |
1 |
5 |
4 |
|
3 |
0 |
0 |
4 |
|
5 |
2 |
3 |
2 |
|
2 |
5 |
5 |
4 |
|
4 |
3 |
4 |
5 |
(a) Complete the F-table. (Round your answers to two decimal places.)
|
Source of |
SS |
df |
MS |
F |
|
Between |
||||
|
Within |
||||
|
Total |
(b) Is it necessary to compute a post hoc test? Explain. (Assume
alpha equal to 0.05.)
Yes, post hoc analyses are appropriate because the ANOVA is significant.
No, post hoc analyses are not appropriate because the ANOVA is not significant.
You may need to use the appropriate table in Appendix B to answer
this question.
In: Math
|
The Eastern Washington County School Corporation is interested
in comparing educational performance at four elementary schools and
has hired you to prepare a DEA model to do so. After detailed
conversations with the corporation administrative staff and the
building principals, you have isolated the following input and
output measurements:
Data is collected for each school on each measure
Develop the DEA model that would evaluate the efficiency of Ralston Elementary School. |
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In: Operations Management
Classify the problem below using the funding categories A to F You do NOT need to solve the problem just classify it. Funding Type
A. Lump Sum Funds Lump Sum
B. Lump Sum Funds Ordinary Level Annuity
C. Lump sum funds delayed level annuity
D. Ordinary Level Annuity funds lump sum
E. Ordinary Level Annuity funds delayed level annuity
F. Delayed Level Annuity funds delayed level annuity
1.You plan on attending graduate school for 2 years starting 5 years from now. Each year of graduate school will cost you $25,000. You begin saving for graduate school starting 2 years from now and save for 3 years. How much must you invest each year, starting two years from now, for 3 years such that your investment will grow to just cover the cost of graduate school? Your investments earn 4% APR (compounded annually).
2.If you earn 6% per year on your investments, how much do you have to invest today to “Fund” a payment of $500 due in 3 years?
In: Finance
6) You have a group of 500 students. On a particular test, μ = 72 and σ = 10.
a) How many students scored above 88?
b) What is the number of students scoring below 60?
7) 100 9-year old boys take turns throwing a baseball as far as they can. For the group,
average distance thrown is 80 feet and σ = 20 feet.
a) What percentage threw 100 feet or more?
b) How many threw 45 feet or less?
c) What distance would be the top 10%?
d) What is the probability that a child picked at random threw between 59-99 feet?
e) What distances are so extreme that only 1% did it?
f) What distances are so extreme that only 5% did it?
In: Statistics and Probability
In a study of children with a particular disorder, parents were asked to rate their child on a variety of items related to how well their child performs different tasks. One item was "Has difficulty organizing work," rated on a five-point scale of 0 to 4 with 0 corresponding to "not at all" and 4 corresponding to "very much." The mean rating for 287 boys with the disorder was reported as 2.27 with a standard deviation of 1.11. (Round your answers to four decimal places.) Compute the 90% confidence interval. , Compute the 95% confidence interval. , Compute the 99% confidence interval. , Explain the effect of the confidence level on the width of the interval. We see that the width of the interval increases with confidence level. We see that the width of the interval does not change with confidence level. We see that the width of the interval decreases with confidence level.
In: Statistics and Probability
In a hospital the doctor wish to decide to hire staff. He knows that he needs to have more ward-boys every weekend on other days, but he is trying to find if the need them constant across the rest of the week. He collects data for the number of counters needed day for two months. Use α= 5%. Here are the data: (Hint: ANNOVA TEST)
Mondays:
296, 243,
318, 276,
297, 329,
332, 285, 331
Tuesdays: 263,
299, 321,
305, 294,
263, 248,
318, 275
Wednesdays: 308, 312,
330, 287,
263, 313,
275, 293 295
Thursdays: 274,
299, 261, 247,
298, 296, 276,
282
Answers should be in Word Version Format
In: Statistics and Probability
Is it important for a company to follow a strict budget even though they may be experiencing phenomenal profits? Do you think that there will be a bias towards greed when creating the budget for this company? Explain.
How does management greed influence budget decisions?
Please consider each of the questions separately in this post. It is important for you to understand the value of the budget as a blueprint for the business – even in times of exceptional “good news”.
It is also important to consider the role of greed within the budgeting process of the firm. Perhaps you might want to think about the budget as a communication to employees about what ownership and management believes is its focus.
You might even want to see if any other of the exceptional “bad boys” in the business world were reflecting their greed even within their budgeting documents
In: Accounting
In a study of children with a particular disorder, parents were asked to rate their child on a variety of items related to how well their child performs different tasks. One item was "Has difficulty organizing work," rated on a five-point scale of 0 to 4 with 0 corresponding to "not at all" and 4 corresponding to "very much." The mean rating for 285 boys with the disorder was reported as 2.39 with a standard deviation of 1.17. (Round your answers to four decimal places.)
Compute the 90% confidence interval. , Compute the 95% confidence interval. ,
Compute the 99% confidence interval. ,
Explain the effect of the confidence level on the width of the interval.
We see that the width of the interval increases with confidence level.
We see that the width of the interval does not change with confidence level.
We see that the width of the interval decreases with confidence level.
In: Statistics and Probability
Ryan likes to listen to music while studying at home. His brother Isaac, however, needs peace and quiet in which to work. They both get an allowance and so have some money. To deal with arguments over whether music is played or not the parents decide that on Monday, Wednesday, Friday and Sunday peace and quiet must reign, but that on Tuesday, Thursday and Saturday it’s ok to play music. Note that the parents set this rule just to avoid quarrels between the two brothers; hence they do not need to stick to the rule as long as there is no quarrel. Note further that no headphones are allowed. Isaac values peace and quiet at $10 per day. Ryan values the ability to play music at $7 per day. If the boys are allowed to negotiate between themselves on which day(s) does music get played? Explain.
In: Economics
Applying the 21 Synectics Steps
The need for thinking and problem-solving skills dominates our lives. Individuals must analyze problems in the workplace, at school, as a parent, and in many other daily situations. You have an opportunity to practice your problem-solving skills through this assignment. Assignment:
Select one problem from the following list or define your own problem.
Design a new textbook for a psychology class, science class, etc. Invent a new telephone. Design a new suitcase. Design new clothes for soldier/teacher/cook/student/ etc. Invent a new style for a video game. Create a short story. Design a new computer. Invent a new way to protect computers from viruses. Create a new type of credit card. Work on solving a problem of your own choosing - a problem that is related to your major field of study.
Remember that you don’t need to create anything physically. You may use images or just descriptions of your ideas. What is important for this assignment is your ability to generate ideas. Number your ideas 1 through 21. Generate 21 ideas about solving it, using the 21 Synectics steps linked here. Note: The 21 Synectics steps were developed by SynecticsWorld, inc. Invention Labs & Workshops | Synecticsworld. (n.d.). Synecticsworld. Retrieved May 23, 2012, from http://synecticsworld.com/invention-labs-workshops/ Your completed assignment should be written primarily in first person and should be 500-750 words in length. If you use sources in your writing, be sure to identify them. If you use any direct language from a source, be sure to place those words in quotation marks. Please No Plagiarism!!!!! In your own words!!!!
In: Psychology