Question

Choose either column D or E of the attached data set and analyze using the techniques...

Choose either column D or E of the attached data set and analyze using the techniques discussed in class up to this point. This includes the following:

Find the appropriate measure of center. Discuss why the chosen measure is most appropriate. Why did you decide against other possible measures of center?

Find the appropriate measure of variation. The measure of variation chosen here should match the measure of center chosen in Part 1.

Find the graph(s) needed to appropriately describe the data. These may be done by hand and inserted into the Word document. You can also use Excel to create a Histogram of the chosen data.

Define a random variable (X) so that your chosen data set represents values of X.

Is your chosen random variable discrete or continuous? Explain how you know.

Would the Normal or Binomial distribution be a good fit for the underlying sample distribution of X? If one of them is a good fit, state how you would approximate the distribution parameters (Use the mean and standard deviation of the data chosen)

Calculate the probability that a flight will depart early or on-time OR arrive early or on time using the empirical or relative frequency definition of probability.

Calculate the probability that a flight will arrive late OR depart late using the empirical or relative frequency definition of probability.

Assume now that the random variable X=Arrival Time is exactly normally distributed with mean m= -2.5 and standard deviation s= 23. Compute the probability of a flight arriving late based on this new information. Does this contradict your answer from Part 8?

Year DAY_OF_MONTH DAY_OF_WEEK DEP_Delay ARR_Delay
2015 13 2 -13 -17
2015 13 2 -17 -11
2015 13 2 -14 -12
2015 13 2 -13 -13
2015 13 2 3 7
2015 13 2 -15 -23
2015 13 2 3 8
2015 13 2 11 6
2015 13 2 -20 -1
2015 13 2 -19 -12
2015 13 2 -22 0
2015 13 2 -18 -16
2015 13 2 -27 -21
2015 13 2 -27 30
2015 13 2 -25 -27
2015 13 2 -28 24
2015 13 2 -30 -29
2015 13 2 -28 24
2015 13 2 -32 -5
2015 13 2 -32 0
2015 13 2 -37 -37
2015 13 2 -37 10
2015 13 2 6 -34
2015 13 2 7 26
2015 13 2 -18 -10
2015 13 2 -20 7
2015 13 2 15 -17
2015 13 2 -13 -18
2015 13 2 -22 0
2015 13 2 -18 -16
2015 13 2 -18 -1
2015 13 2 -19 -16
2015 13 2 -27 -13
2015 13 2 -23 6
2015 13 2 -26 -11
2015 13 2 -21 -5
2015 13 2 -26 -9
2015 13 2 25 20
2015 13 2 10 0
2015 13 2 -33 -28
2015 13 2 -27 -18
2015 13 2 -33 -31
2015 13 2 3 -32
2015 13 2 12 15
2015 13 2 13 20
2015 13 2 14 12
2015 13 2 0 0
2015 13 2 -14 -3
2015 13 2 18 17
2015 13 2 -13 7
2015 13 2 12 36
2015 13 2 9 22
2015 13 2 -15 -19
2015 13 2 -24 5
2015 13 2 -20 15
2015 13 2 -26 2
2015 13 2 -28 -3
2015 13 2 -27 1
2015 13 2 9 1
2015 13 2 -29 -16
2015 13 2 -27 1
2015 13 2 -28 -3
2015 13 2 6 4
2015 13 2 -30 -7
2015 13 2 34 16
2015 13 2 -28 6
2015 13 2 18 1
2015 13 2 -33 -13
2015 13 2 -17 -11
2015 13 2 -3 -16
2015 13 2 0 -15
2015 13 2 -17 -20
2015 13 2 2 -31
2015 13 2 6 7
2015 13 2 16 14
2015 13 2 -20 -27
2015 13 2 7 24
2015 13 2 23 40
2015 13 2 -21 -16
2015 13 2 -24 -18
2015 13 2 -27 -2
2015 13 2 12 10
2015 13 2 -27 -18
2015 13 2 -32 3
2015 13 2 -31 -20
2015 13 2 -25 0
2015 13 2 -34 -20
2015 13 2 -32 -11
2015 13 2 8 -22
2015 13 2 0 0
2015 13 2 -34 -24
2015 13 2 -9 -8
2015 13 2 6 2
2015 13 2 -15 -7
2015 13 2 -11 21
2015 13 2 -20 -28
2015 13 2 -19 -27
2015 13 2 -22 6
2015 13 2 -24 -9
2015 13 2 -23 9
2015 13 2 -20 -33
2015 13 2 8 38
2015 13 2 -23 -16
2015 13 2 -26 -35
2015 13 2 -29 -30
2015 13 2 -28 -42
2015 13 2 -23 -28
2015 13 2 -31 -6
2015 13 2 -27 9
2015 13 2 -31 -12
2015 13 2 20 13
2015 13 2 -32 -12
2015 13 2 -32 -15
2015 13 2 -30 0
2015 13 2 1 -11
2015 13 2 -13 -4
2015 13 2 -14 15
2015 13 2 -19 -27
2015 13 2 1 3
2015 13 2 -12 -9
2015 13 2 -21 -4
2015 13 2 -19 -15
2015 13 2 0 -2
2015 13 2 5 7
2015 13 2 -20 -15
2015 13 2 -26 -35
2015 13 2 17 19
2015 13 2 6 2
2015 13 2 -24 -26
2015 13 2 -29 5
2015 13 2 -32 -9
2015 13 2 -30 -38
2015 13 2 -31 -34
2015 13 2 0 -34
2015 13 2 -35 -11
2015 13 2 -32 -14
2015 13 2 5 -18
2015 13 2 15 17
2015 13 2 13 13
2015 13 2 -16 -2
2015 13 2 -15 5
2015 13 2 -16 -23
2015 13 2 -17 -11
2015 13 2 14 23
2015 13 2 3 13
2015 13 2 -25 -26
2015 13 2 9 -7
2015 13 2 -25 18
2015 13 2 -25 -10
2015 13 2 0 -7
2015 13 2 -25 -30
2015 13 2 25 22
2015 13 2 -24 -6
2015 13 2 -25 -18
2015 13 2 0 -32
2015 13 2 -33 -30
2015 13 2 -32 -34
2015 13 2 24 7
2015 13 2 8 11
2015 13 2 -37 -22
2015 13 2 7 -38
2015 13 2 -17 -10
2015 13 2 -18 -1
2015 13 2 -20 -2
2015 13 2 0 -15
2015 13 2 2 1
2015 13 2 -15 13
2015 13 2 -23 -9
2015 13 2 -23 1
2015 13 2 4 -23
2015 13 2 1 3
2015 13 2 -23 20
2015 13 2 -26 8
2015 13 2 0 -7
2015 13 2 0 -12
2015 13 2 -25 -28
2015 13 2 -28 -18
2015 13 2 -33 -27
2015 13 2 -31 2
2015 13 2 -27 9
2015 13 2 23 4
2015 13 2 8 11
2015 13 2 21 17
2015 13 2 1 27
2015 13 2 4 22
2015 13 2 -16 6
2015 13 2 15 0
2015 13 2 0 24
2015 13 2 2 11
2015 13 2 -13 -16
2015 13 2 -17 -3
2015 13 2 1 0
2015 13 2 -23 -21
2015 13 2 -19 -16
2015 13 2 -25 -13
2015 13 2 -20 8
2015 13 2 -20 -24
2015 13 2 -24 -18
2015 13 2 -27 -15
2015 13 2 -23 -24
2015 13 2 -31 -18
2015 13 2 -20 -8
2015 13 2 -34 -26
2015 13 2 1 6
2015 13 2 -35 -16
2015 13 2 -36 -21
2015 13 2 -12 -21
2015 13 2 0 2
2015 13 2 -12 -10
2015 13 2 -17 -26
2015 13 2 3 4
2015 13 2 -19 -36
2015 13 2 -20 -18
2015 13 2 -17 -21
2015 13 2 -19 -42
2015 13 2 -22 -17
2015 13 2 -26 -8
2015 13 2 -24 -8
2015 13 2 -21 -9
2015 13 2 -30 -10
2015 13 2 1 1
2015 13 2 -28 -21
2015 13 2 -28 1
2015 13 2 -30 -1
2015 13 2 -21 -4
2015 13 2 13 -26
2015 13 2 -31 -28
2015 13 2 -30 -11
2015 13 2 7 5
2015 13 2 2 12
2015 13 2 6 14
2015 13 2 19 16
2015 13 2 11 -32
2015 13 2 13 6
2015 13 2 -22 -20
2015 13 2 -19 -36
2015 13 2 -23 3
2015 13 2 0 2
2015 13 2 -18 -25
2015 13 2 8 0
2015 13 2 -21 -24
2015 13 2 -28 -3
2015 13 2 7 6
2015 13 2 -22 -3
2015 13 2 5 2
2015 13 2 30 4
2015 13 2 15 19
2015 13 2 23 6
2015 13 2 7 6
2015 13 2 11 12
2015 13 2 2 -24
2015 13 2 -37 -26
2015 13 2 -10 22
2015 13 2 5 0
2015 13 2 5 13
2015 13 2 9 -11
2015 13 2 0 -23
2015 13 2 -15 7
2015 13 2 -21 22
2015 13 2 5 -33
2015 13 2 3 -32
2015 13 2 7 28
2015 13 2 12 10
2015 13 2 -26 -24
2015 13 2 -29 -20
2015 13 2 -25 -17
2015 13 2 -21 11
2015 13 2 17 14
2015 13 2 -29 -38
2015 13 2 -27 -13
2015 13 2 -31 -7
2015 13 2 -35 -7
2015 13 2 28 7
2015 13 2 -33 -4
2015 13 2 -38 6
2015 13 2 15 6
2015 13 2 -14 0
2015 13 2 14 10
2015 13 2 0 -20
2015 13 2 -16 9
2015 13 2 -13 -22
2015 13 2 -19 -18
2015 13 2 14 15
2015 13 2 1 28
2015 13 2 1 -29
2015 13 2 -26 -21
2015 13 2 -28 3
2015 13 2 29 11
2015 13 2 17 29
2015 13 2 -30 7
2015 13 2 -25 -37
2015 13 2 -31 -38
2015 13 2 -34 -29
2015 13 2 10 9
2015 13 2 4 -39
2015 13 2 -28 -28
2015 13 2 -36 -17
2015 13 2 -36 -8
2015 13 2 -9 -7
2015 13 2 -18 -18
2015 13 2 8 -18
2015 13 2 -11 5
2015 13 2 -16 9
2015 13 2 13 10
2015 13 2 6 13
2015 13 2 -20 4
2015 13 2 2 -19
2015 13 2 -23 -18
2015 13 2 -17 -29
2015 13 2 -24 -21
2015 13 2 -27 -15
2015 13 2 24 19
2015 13 2 -24 -33
2015 13 2 -26 -18
2015 13 2 -27 -17
2015 13 2 -30 -24
2015 13 2 -34 2
2015 13 2 1 -37
2015 13 2 -28 -33
2015 13 2 -35 5
2015 13 2 -31 -31
2015 13 2 17 23
2015 13 2 -15 2
2015 13 2 -15 -9
2015 13 2 0 2
2015 13 2 -16 -9
2015 13 2 -21 8
2015 13 2 -18 -10
2015 13 2 22 5
2015 13 2 11 8
2015 13 2 16 -23
2015 13 2 -25 -19
2015 13 2 -26 -21
2015 13 2 -25 -17
2015 13 2 -22 -16
2015 13 2 -27 -20
2015 13 2 -30 -28
2015 13 2 -30 -26
2015 13 2 28 21
2015 13 2 2 -31
2015 13 2 -35 -29
2015 13 2 27 23
2015 13 2 9 3
2015 13 2 0 -26
2015 13 2 3 18
2015 13 2 0 4
2015 13 2 -13 -34
2015 13 2 -17 -38
2015 13 2 -17 -32
2015 13 2 -17 -18
2015 13 2 -17 -4
2015 13 2 -18 -5
2015 13 2 9 -17
2015 13 2 0 -19
2015 13 2 -22 7
2015 13 2 -24 -10
2015 13 2 14 11
2015 13 2 22 5
2015 13 2 -30 -8
2015 13 2 -30 -16
2015 13 2 -27 -14
2015 13 2 -27 -22
2015 13 2 3 10
2015 13 2 -33 6
2015 13 2 0 14
2015 13 2 -34 6
2015 13 2 2 -27
2015 13 2 -9 -13
2015 13 2 -11 -20
2015 13 2 3 5
2015 13 2 5 23
2015 13 2 -15 6
2015 13 2 -22 0
2015 13 2 -17 -33
2015 13 2 -21 -23
2015 13 2 -25 -22
2015 13 2 -21 -43
2015 13 2 -24 -16
2015 13 2 14 12
2015 13 2 -26 -13
2015 13 2 -22 -10
2015 13 2 17 -21
2015 13 2 -23 7
2015 13 2 -32 -19
2015 13 2 -31 -15
2015 13 2 -28 -5
2015 13 2 1 -25
2015 13 2 -27 -10
2015 13 2 -35 -16
2015 13 2 -36 2
2015 13 2 -16 12
2015 13 2 -17 6
2015 13 2 3 4
2015 13 2 -10 -6
2015 13 2 -16 -24
2015 13 2 -21 -9
2015 13 2 -19 -18
2015 13 2 -24 -37
2015 13 2 -22 -29
2015 13 2 -20 -18
2015 13 2 -27 10
2015 13 2 11 3
2015 13 2 -25 3
2015 13 2 -30 5
2015 13 2 -23 -11
2015 13 2 -27 -16
2015 13 2 -26 -4
2015 13 2 -27 -10
2015 13 2 -30 -6
2015 13 2 -24 -4
2015 13 2 -34 -12
2015 13 2 -33 -8
2015 13 2 -36 4
2015 13 2 -11 -7
2015 13 2 -13 -25
2015 13 2 2 -27
2015 13 2 4 -24
2015 13 2 -17 -18
2015 13 2 -13 -23
2015 13 2 20 5
2015 13 2 -17 -16
2015 13 2 -21 -31
2015 13 2 -25 -34
2015 13 2 -27 -25
2015 13 2 17 -13
2015 13 2 -27 -30
2015 13 2 -26 -27
2015 13 2 -29 -39
2015 13 2 3 -16
2015 13 2 -31 1
2015 13 2 -24 -17
2015 13 2 3 0
2015 13 2 23 7
2015 13 2 -33 -6
2015 13 2 -34 -10
2015 13 2 -34 1
2015 13 2 -6 -6
2015 13 2 7 7
2015 13 2 -13 -3
2015 13 2 -18 -15
2015 13 2 -17 -17
2015 13 2 -19 -12
2015 13 2 -15 -16
2015 13 2 -22 -19
2015 13 2 -21 -18
2015 13 2 -16 -18
2015 13 2 27 19
2015 13 2 11 7
2015 13 2 -24 -16
2015 13 2 -26 1
2015 13 2 -29 -27
2015 13 2 -28 -27
2015 13 2 -31 -33
2015 13 2 -32 28
2015 13 2 28 18
2015 13 2 12 -37
2015 13 2 30 14
2015 13 2 -33 -35
2015 13 2 -34 -13
2015 13 2 0 -14
2015 13 2 -15 -14
2015 13 2 -19 -11
2015 13 2 -15 -5
2015 13 2 12 4
2015 13 2 15 20
2015 13 2 3 12
2015 13 2 19 17
2015 13 2 22 19
2015 13 2 -25 -20
2015 13 2 -22 -27
2015 13 2 -28 -1
2015 13 2 -27 0
2015 13 2 -25 9
2015 13 2 3 -32
2015 13 2 -21 0
2015 13 2 -25 -14
2015 13 2 10 9
2015 13 2 -33 3
2015 13 2 -34 -31
2015 13 2 -35 1
2015 13 2 0 -31
2015 13 2 3 -32
2015 13 2 -6 -34
2015 13 2 -18 -35
2015 13 2 6 -40
2015 13 2 9 5
2015 13 2 -12 -3
2015 13 2 -21 -17
2015 13 2 -20 2
2015 13 2 -21 11
2015 13 2 20 20
2015 13 2 -26 5
2015 13 2 -16 -19
2015 13 2 -27 -23
2015 13 2 -21 -5
2015 13 2 26 13
2015 13 2 -29 -17
2015 13 2 -28 -19
2015 13 2 -28 -17
2015 13 2 -31 -15

Homework Answers

Answer #1

above table calculated in excel via Data tab -> Data Analysis Tool pack -> Descriptive Statistics

1)Measures of central tendency are mean, median , mode,

since the data is skewed in both dep_delay and ARR_DELAY

we will use median as Measures of central tendency

2)among standrd devaition and interquartile range(IQR)

IQR is  best measure of dispersion(also we use median as measure of central tendency)

3)DEP_DELAY box plot

number of departures on early(excel formula)

=countif(-13,-17,-14............,"<0")

=334

number of departures on time(excel formula)

=countif(-13,-17,-14............,"=0")

=22

number of departures late(excel formula)

=countif(-13,-17,-14............,">0")

=144

total departures,n=144+22+334=500

probability that a flight will depart early or on-time=(334+22)/500=0.712

probability that a flight will depart late=144/500=0.288

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The results of a sample of 372 subscribers toWiredmagazine shows the time spent using the Internet...
The results of a sample of 372 subscribers toWiredmagazine shows the time spent using the Internet during the week. Previous surveys have revealed that the population standard deviation is 10.95 hours. The sample data can be found in the Excel test data file. What is the probability that another sample of 372 subscribers spends less than 19.00 hours per week using the Internet? Develop a 95% confidence interval for the population mean If the editors of Wiredwanted to have the...
6. Using the class data (see Blackboard file - "Class Survey Data - PSS-10 and GAS")...
6. Using the class data (see Blackboard file - "Class Survey Data - PSS-10 and GAS") calculate the correlation between the GAS – Goal disengagement and the GAS – Goal reengagement scores. Write the results in a statistical statement. 7. Using the class data calculate the correlation between the GAS – Goal disengagement and the PSS-10 scores. Write the results in a statistical statement. 8. Using the class data calculate the correlation between the GAS – Goal reengagement scores and...
____________________________________________ The results of a sample of 372 subscribers to Wired magazine shows the time spent...
____________________________________________ The results of a sample of 372 subscribers to Wired magazine shows the time spent using the Internet during the week. Previous surveys have revealed that the population standard deviation is 10.95 hours. The sample data can be found in the Excel test data file. What is the probability that another sample of 372 subscribers spends less than 19.00 hours per week using the Internet? ____________________________________________ Develop a 95% confidence interval for the population mean ____________________________________________ If the editors...
A manufacturing company is purchasing metal pipes of standard length from two different suppliers, ABC and...
A manufacturing company is purchasing metal pipes of standard length from two different suppliers, ABC and XYZ. In the past two months there are increasing complaints by the Production Manager that delivery times by ABC present higher variability in comparison to the delivery times by XYZ. The Production Manager is worried that this variability will make it harder to efficiently schedule the production process. If the variance of XYZ remains unchanged, what should be the variance of ABC in order...
We want to compare the average gas mileage of American-made cars vs. Japanese-made cars. The claim...
We want to compare the average gas mileage of American-made cars vs. Japanese-made cars. The claim is that the Japanese cars and American cars do not get the same gas mileage. Use the list data below to test the hypothesis that the Japanese cars and American cars do not get the same gas mileage. The American cars are in list1 and the Japanese cars in list2 below We do not know whether the mileages are normally distributed or not, but...
to look at 36 weeks instead of 20 weeks. His quality improvement team provided him with...
to look at 36 weeks instead of 20 weeks. His quality improvement team provided him with the data below after an “intervention” was introduced in week 20. Calculate the upper and lower control limits and then construct a control chart. Display your chart. Question: Using the rules for detecting special causes, can you detect any special causes in this case? If so, what special causes can you detect? What does this mean? Was the intervention successful in reducing the delays?...
A manufacturing company is purchasing metal pipes of standard length from two different suppliers, ABC and...
A manufacturing company is purchasing metal pipes of standard length from two different suppliers, ABC and XYZ. In the past two months there are increasing complaints by the Production Manager that delivery times by ABC present higher variability in comparison to the delivery times by XYZ. The Production Manager is worried that this variability will make it harder to efficiently schedule the production process. Does the sample data indicate a statistically significant difference at the 5% level? Justify your answer....
A manufacturing company is purchasing metal pipes of standard length from two different suppliers, ABC and...
A manufacturing company is purchasing metal pipes of standard length from two different suppliers, ABC and XYZ. In the past two months there are increasing complaints by the Production Manager that delivery times by ABC present higher variability in comparison to the delivery times by XYZ. The Production Manager is worried that this variability will make it harder to efficiently schedule the production process. Does the sample data indicate a statistically significant difference at the 5% level? Justify your answer....
A study was conducted to see if students’ writing skills continue to improve as the academic...
A study was conducted to see if students’ writing skills continue to improve as the academic year progresses. English 101 students were asked to write essays throughout the year in September, December, March and June. The scores were compared to see if there is any improvement in this one-year course. Was there a significant improvement? The appropriate test for this problem is: one-way ANOVA repeated measurements Student September December March June 1 17 23 21 24 2 25 21 21...
A doctor discovers a particular disease and determines the life expectancy is not good. He gathers...
A doctor discovers a particular disease and determines the life expectancy is not good. He gathers the data for his patents and posts it in the table below. The claims that the average life expectancy once the disease presents itself is less than 15 days. Check his claim and make an appropriate report about your findings Patient Days till passing 1 24 2 23 3 13 4 20 5 10 6 18 7 13 8 14 9 24 10 25...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT