Parametric Techniques: Mean, Standard Deviation
Explore parametric techniques, including calculating the mean, median, and mode for grouped and ungrouped data. Learn how to determine variance and standard deviation, using examples such as calculating standard deviation for men's heights. Understand the use of the correlation coefficient, including Pearson's r.
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Quiz25 Questions
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Study Notes1 Note
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Parametric Techniques: Mean, Standard Deviation
Quiz • 25 Questions
Parametric Techniques: Mean, Standard Deviation - Flashcards
Flashcards • 21 Cards
Study Notes
5 min • Summary
Materials
List of Questions25 questions
- Question 1
- Variance
- Median
- Mean
- Mode
- Question 2
- median
- Question 3
- The mode is the most frequently occurring value in a series and is unaffected by extreme values, similar to the median.
- Question 4
- True
- False
- Question 5
- The test is inconclusive without more data
- The sample mean is equal to the population mean (p = 0.05)
- The sample mean is significantly different from the population mean (p < 0.05)
- The sample mean is not significantly different from the population mean (p ≥ 0.05)
- Question 6
- Question 7
- One limitation is that the mode remains indeterminate when there are two or more modal values in a series, meaning it can be difficult to pinpoint a single most frequent value.
- Question 8
- True
- False
- Question 9
- Parametric technique
- Non-parametric technique
- Pearson correlation
- T-test
- Question 10
- three
- Question 11
- The purpose of a Hypothesis test is to decide whether the data supports a particular theory, which implies it can be applied to a larger population.
- Question 12
- True
- False
- Question 13
- Spearman correlation
- Mann-Whitney U test
- Z-test
- Chi-square test
- Question 14
- -1, 1
- Question 15
- A Paired T-test compares means from the same group under different conditions, while an Unpaired T-test compares means from two independent groups.
- Question 16
- True
- False
- Question 17
- 8.8
- 7.8
- 6.8
- 9.8
- Question 18
- variance
- Question 19
- A Pearson correlation coefficient (r) of 0 indicates no linear relationship between the two continuous variables.
- Question 20
- True
- False
- Question 21
- 12
- 14
- 10
- 8
- Question 22
- equal
- Question 23
- Parametric techniques are typically quantity-based tests that provide records regarding the mean value of data and are used for interval data. Non-parametric techniques are quality-based tests that provide records regarding the median value of data and are used for nominal data.
- Question 24
- True
- False
- Question 25
- The results are inconclusive due to the negative Z-score.
- The sample mean is significantly different from the population mean because |-3.61| > 1.96.
- The company's claim is supported because the Z-score is negative.
- The sample mean is not significantly different from the population mean because |-3.61| < 1.96.
List of Flashcards21 flashcards
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