Homework Answers
a.
False.
b.
True Second quartile is same as median.
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c.
True
First quartile is .25 and 25th percentile is also 25/1100 = 0.25
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d.
False
Five number summary is minimum, first quartlie, median, third quartile, maximum
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Determine if the following statements are true or false. a. The third quartile separates the lowest...
Determine if the following statements are true or false. a. The third quartile separates the lowest...
Determine if the following statements are true or false. a. The third quartile separates the lowest 25% of the data from the highest 75% of the data. b. The second quartile is the same as the median. c. The first quartile is the same as the 25th percentile. d. The five-number summary consists of the following values: (minimum, first quartile, mean, third quartile, maximum)
Determine if the following statements are true or false. a. The third quartile separates the lowest...
Determine if the following statements are true or false. a. The third quartile separates the lowest 25% of the data from the highest 75% of the data. b. The second quartile is the same as the median. C. The first quartile is the same as the 25th percentile. d. The five-number summary consists of the following values: (minimum, first quartile, mean, third quartile, maximum) Let V be the event that a computer contains a virus, and let w be the...
Which statements are INCORRECT?
Which statements are INCORRECT?If two data sets have the same standard deviation, they must have the same coefficient of variation.The number of standard deviations between the 25th percentile and the median is always the same as between the median and the 75th percentile.The range is considered the weakest measure of variability.The 5-number summary consists of the smallest observation, the first quartile, the median, the third quartile, and the largest observation.
I want to know the answer and explanation of (d) and (f). 2. Percentiles and Quartiles...
I want to know the answer and
explanation of (d) and (f).
2. Percentiles and Quartiles Given a data set with n data values yvi < /2 ..S yn, define the pth percentile of the data set to be the element at index ceiling, and it means that we always round up to the next integer. For example, suppose we have a data set with n - 13 elements, and we want to calculate the 25th percentile of the data...
The following are the entrance exam scores (percentages) of 15 randomly chosen students: 65 81 55...
The following are the entrance exam scores (percentages) of 15
randomly chosen students:
65 81 55 90 85
95 77 62 89 83
74 83 62 68 83
a. Calculate the range of the scores.
b. Determine the first, second and third quartiles.
c. Calculate the percentile rank of a person who has a score of
62%.
d. What is the score of a person who is in the 80th percentile
of the data?
e. Calculate the mean, median, and...
15. Which of the following is not a measure of location? (a) mean (b) median (c)...
15. Which of the following is not a measure of location? (a) mean (b) median (c) variance (d) percentile (e) quartile 16. Which of the following statements is false? (a) the median is a measure of central tendency (b) quartiles are not measures of central tendency (c) the 50th percentile is the median (d) an extreme value is likely to have a greater effect on the median than the mean (e) the 25th percentile is the first quartile (Q1) Indicate...
1. The values analyze of LTime follow a normal distribution a. True b. False 2. The...
1. The values analyze of LTime follow a normal
distribution
a. True
b. False
2. The 75% of values are below of:
a. 0.954
b. 1.204
c. 1.748
d. 1.220
3. A second sampling is made from LTime process. The value of
mean was
0.91, is correct to think that the average has changed
significantly?
a. True
b. False
Summary for LTime Anderson-Darling Normality Test A-Squared P-Value 0.43 0.299 Mean 0.98549 StDev 0.29727 0.08837 Variance Skew ness 0.260626 0.301601 100...
1. The values analyze of LTime follow a normal distribution a. True b. False 2. The 75% of values are below of: a. 0.95...
1. The values analyze of LTime follow a normal
distribution
a. True
b. False
2. The 75% of values are below of:
a. 0.954
b. 1.204
c. 1.748
d. 1.220
3. A second sampling is made from LTime process. The value of
mean was
0.91, is correct to think that the average has changed
significantly?
a. True
b. False
Summary for LTime Anderson-Darling Normality Test A-Squared P-Value 0.43 0.299 Mean 0.98549 StDev 0.29727 0.08837 Variance Skew ness 0.260626 0.301601 100...
Given the following data set: 34.8, 35.0, 34.1, 35.4, 36.3, 36.5, 35.2, 36.2, 36.0, 34.7, 34.2,...
Given the following data set: 34.8, 35.0, 34.1, 35.4, 36.3, 36.5, 35.2, 36.2, 36.0, 34.7, 34.2, and 34.6 Find a five-number summary ( A: minimum, B: the first quartile, C: median, D: the third quartile, and E: maximum) of the data.
Given the following data set: 34.8, 35.0, 34.1, 35.4, 36.3, 36.5, 35.2, 36.2, 36.0, 34.7, 34.2,...
Given the following data set: 34.8, 35.0, 34.1, 35.4, 36.3, 36.5, 35.2, 36.2, 36.0, 34.7, 34.2, and 34.6 Find a five-number summary ( A: minimum, B: the first quartile, C: median, D: the third quartile, and E: maximum) of the data.
Determine if the following statements are true or false. a. The third quartile separates the lowest 25% of the data from the highest 75% of the data. b. The second quartile is the same as the median. c. The first quartile is the same as the 25th percentile. d. The five-number summary consists of the following values: (minimum, first quartile, mean, third quartile, maximum)
Determine if the following statements are true or false. a. The third quartile separates the lowest 25% of the data from the highest 75% of the data. b. The second quartile is the same as the median. C. The first quartile is the same as the 25th percentile. d. The five-number summary consists of the following values: (minimum, first quartile, mean, third quartile, maximum) Let V be the event that a computer contains a virus, and let w be the...
I want to know the answer and
explanation of (d) and (f).
2. Percentiles and Quartiles Given a data set with n data values yvi < /2 ..S yn, define the pth percentile of the data set to be the element at index ceiling, and it means that we always round up to the next integer. For example, suppose we have a data set with n - 13 elements, and we want to calculate the 25th percentile of the data...
The following are the entrance exam scores (percentages) of 15
randomly chosen students:
65 81 55 90 85
95 77 62 89 83
74 83 62 68 83
a. Calculate the range of the scores.
b. Determine the first, second and third quartiles.
c. Calculate the percentile rank of a person who has a score of
62%.
d. What is the score of a person who is in the 80th percentile
of the data?
e. Calculate the mean, median, and...
1. The values analyze of LTime follow a normal
distribution
a. True
b. False
2. The 75% of values are below of:
a. 0.954
b. 1.204
c. 1.748
d. 1.220
3. A second sampling is made from LTime process. The value of
mean was
0.91, is correct to think that the average has changed
significantly?
a. True
b. False
Summary for LTime Anderson-Darling Normality Test A-Squared P-Value 0.43 0.299 Mean 0.98549 StDev 0.29727 0.08837 Variance Skew ness 0.260626 0.301601 100...
1. The values analyze of LTime follow a normal
distribution
a. True
b. False
2. The 75% of values are below of:
a. 0.954
b. 1.204
c. 1.748
d. 1.220
3. A second sampling is made from LTime process. The value of
mean was
0.91, is correct to think that the average has changed
significantly?
a. True
b. False
Summary for LTime Anderson-Darling Normality Test A-Squared P-Value 0.43 0.299 Mean 0.98549 StDev 0.29727 0.08837 Variance Skew ness 0.260626 0.301601 100...
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