statistics evaluation questions discussion assignment
Order ID 53563633773 Type Essay Writer Level Masters Style APA Sources/References 4 Perfect Number of Pages to Order 5-10 Pages Description/Paper Instructions
Statistic Quiz
Question 1
10 Points
The number of highway miles per gallon of the 10 worst vehicles is shown:
12, 15 , 13, 14, 15, 16, 17, 16, 17, 18
Find
- a) Variance
3.57
2.5
4
None of the above
Question 2
10 Points
A student scored 65 on a calculus test that had a mean of 50 and a standard deviation of 10; she scored 30 on a history test with a mean of 25 and a standard deviation of 5. Compare her relative positions on the two tests. HINT: Compute the Z score for each!
Z= (X- X(bar))/S = (65 -50)/10 = 1.5 for calculus
Z = (30-25)/5 = 1.0 for History
Therefore, calculus
Z= (X- X(bar))/S = (65 -50)/10 = 1.5 for calculus
Z = (30-25)/5 = 1.0 for History
Therefore, History
Z= (X- X(bar))/S = (50 -65)/10 = -1.5 for calculus
Z = (25-30)/5 = -1.0 for History
Therefore, History
None of the above
Question 3
10 Points
The number of highway miles per gallon of the 10 worst vehicles is shown:
12, 15 , 13, 14, 15, 16, 17, 16, 17, 18
Find
- a) Mean
15.3
16
6
None of the above
Question 4
10 Points
What is the difference between a STATISTIC and PARAMETER?
A statistics refers to the summary values of a set of numbers obtained from a sample. This value will be used to estimate the Population value (fact or truth)
A parameter refers to the summary values of all numbers in the original population. This value is fact or TRUTH
A statistics refers to the summary values of a set of numbers obtained from a population. This value will be used to estimate the sample value.
A parameter refers to the summary values of all numbers in the sample.
A statistics refers to the summary values of a set of numbers.
A parameter refers to the summary values of all numbers .
None of the above
Question 5
10 Points
The number of highway miles per gallon of the 10 worst vehicles is shown:
12, 15 , 13, 14, 15, 16, 17, 16, 17, 18
Find
- a) Standard deviation
1.9
2
1.7
None of the above
Question 6
10 Points
What is the value of the mode when all values in the data set are different?
0
1
There is no mode
It cannot be determined unless the data values are given
Question 7
10 Points
The name of a statistics that is used to describe the number of standard deviations a data value is above or below the mean is called
A quartile
A percentile
A coefficient of variation
A Z score
Question 8
10 Points
The three data sets have the same mean and range, but is the variation the same? Prove your answers by compute the standard deviation. Assume the data were obtained from samples.
- 5,7,9,11,13,15,17
- 5,6,7,11,15,16,17
- 5,5,5,11,17,17,17,
Mean = 11
Range= 17-5 = 12
No, (a) has the smallest variation; (c) has the biggest variation
Mean = 11
Range= 5-12 = -12
No, (a) has the smallest variation; (c) has the biggest variation
Mean = 10
Range= 17-5 = 12
No, (a) has the smallest variation; (c) has the biggest variation
None of the above
Question 9
10 Points
When a distribution is bell-shaped, approximately what percentage of data values will fall within 2 standard deviation?
50%
68%
95%
99.7%
Question 10
10 Points
If the mean of five values is 8.2 and four of the values are 6, 10,7, and 12, find the fifth value. Work out your answer than make a choice.
8.2
41
35
6
RUBRIC
QUALITY OF RESPONSE NO RESPONSE POOR / UNSATISFACTORY SATISFACTORY GOOD EXCELLENT Content (worth a maximum of 50% of the total points) Zero points: Student failed to submit the final paper. 20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. 30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking. 40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete. 50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing. Use of Sources (worth a maximum of 20% of the total points). Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper. 5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper. 10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources. 15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6th Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources. 20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment. 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