Question
In: Statistics and Probability
Given the following students' test scores (95, 92, 90, 90, 83, 83, 83, 74, 60, and...
Given the following students' test scores (95, 92, 90, 90, 83, 83, 83, 74, 60, and 50), identify the mean, median, mode, range, variance, and standard deviation for the sample.
Write a 500-750-word summary and analysis discussing the results of your calculations. State your results for the sample: the mean, median, mode, range, variance, and standard deviation Explain which method is best for this data set. Why?
Conduct a one sample T-test and interpret the results (use a population mean of 70).
In what situations would this information be useful?
Prepare this assignment according to the guidelines found in the APA Style Guide, located in the Student Success Center. An abstract is not required.
Solutions
orchestra answered 1 year agoRelated Solutions
Given the following students' test scores (95, 92, 90, 90, 83, 83, 83, 74, 60, and...
Given the following students' test scores (95, 92, 90, 90, 83,
83, 83, 74, 60, and 50), identify the mean, median, mode, range,
variance, and standard deviation for the sample.
Write a 500-750-word summary and analysis discussing the
results of your calculations.
State your results for the sample: the mean, median, mode,
range, variance, and standard deviation
Explain which method is best for this data set. Why?
Conduct a one sample T-test and interpret the results (use a
population mean...
Given the following students' test scores (95, 92, 90, 90, 83, 83, 83, 74, 60, and...
Given the following students' test scores (95, 92, 90, 90, 83,
83, 83, 74, 60, and 50), identify the mean, median, mode, range,
variance, and standard deviation for the sample. Write a
500-750-word summary and analysis discussing the results of your
calculations. State your results for the sample: the mean, median,
mode, range, variance, and standard deviation Explain which method
is best for this data set. Why? Conduct a one sample T-test and
interpret the results (use a population mean...
3. Scores on a statistics exam are given: 85 72 92 90 74 65 68 59...
3. Scores on a statistics exam are given: 85 72 92 90 74 65 68
59 74 85 63 79 81 92 95 74 88 55
Use this data to calculate the:
A) mean __________ B) median ________ C) mode ________ D) range
________
E) standard deviation _________ F) find the z-score for a test
grade of 90._______
G) Construct a stem and leaf display using this data.
H) Construct a box and whisker plot using this data.
I)...
Determine the 95% confidence interval for the following scores: 83, 92, 81, 87, 79, 93, 88,...
Determine the 95% confidence interval for the following scores:
83, 92, 81, 87, 79, 93, 88, 87, 83. Hint: You will need to
determine the sample mean and standard deviation and then construct
your confidence interval around these.
92 99 96 94 94 94 90 95 90 89 89 80 83 88 88 1. What...
92
99
96
94
94
94
90
95
90
89
89
80
83
88
88
1. What is the n? __________
2. What is ∑x ? __________
3. What is ∑x2? __________
4. What is (∑x)2? __________
5. What is the range? __________
6. What is the mean? __________
7. What is the median? __________
8. What is the mode? __________
9. What is the variance? __________
10. What is the standard
deviation? __________
11. If Kara scored a 90 (x)….What is her
Z-score? __________
12. If Sara scored a 95….What is her
T-score? __________
13. Mark scored an 88 (one of...
Scores are 92, 68, 88, 96, 72, 88, 80, 64, 74, 92, 100, 84 What is...
Scores are 92, 68, 88, 96, 72, 88, 80, 64, 74, 92, 100,
84
What is the IQR?
19
19.5
20.5
20
6
A random sample of 83 eighth grade students' scores on a national mathematics assessment test has...
A random sample of 83 eighth grade students' scores on a
national mathematics assessment test has a mean score of 278. This
test result prompts a state school administrator to declare that
the mean score for the state's eighth-graders on this test is more
than 275. Assume that the population standard deviation is 35. At
α=0.08 is there enough evidence to support the administration's
claim? Complete parts (a) through (e).
A is done
B: fine the standardized test statistic z,...
Exam 1 Scores 91, 83, 75, 85, 90, 80, 67, 82, 88, 87, 95, 91, 73,...
Exam 1 Scores
91, 83, 75, 85, 90, 80, 67, 82, 88, 87, 95, 91, 73, 80, 83, 92,
94, 68, 75, 91, 79, 95, 87, 76, 91, 85, 59, 70, 69, 78
Dummy: 0, 0
What are the Hypothesis Statement?
What is Ho?
What is Ha?
What is the P-Value?
What is the Claim?
What is the Decision Rule? (Hint: Do you reject or fail to
reject the null hypothesis?)
What is the Level of Significance? (Hint: α)
What...
The scores on a math test are normally distributed with a mean of 74 and a...
The scores on a math test are normally distributed with a mean
of 74 and a standard deviation of 8. The test scores range from 0
to 100. Seven students had test scores between 82 and 98. Estimate
the number of students who took the test.
Below you are given the examination scores of 20 students. 52 99 92 86 84 63...
Below you are given the examination scores of 20
students.
52
99
92
86
84
63
72
76
95
88
92
58
65
79
80
90
75
74
56
99
a).
How many classes would you recommend?
b).
What class interval would you suggest?
c).
Develop a relative frequency distribution
d).
Develop a cumulative frequency distribution
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