When flights are delayed, do two of the worst airports experience delays of the same length?...

When flights are delayed, do two of the worst airports experience delays of the same length? Suppose the delay times in minutes for seven recent, randomly selected delayed flights departing from each of these airports are as follows.

Airport 1	Airport 2
63	108
99	38
41	35
32	86
55	74
28	42
49	56

Use the MWW test to determine if there is a difference in length of flight delays for these two airports. Use α = 0.05.

State the null and alternative hypotheses.

H₀: The two populations of flight delays are not identical.
H_a: The two populations of flight delays are identical.H₀: The two populations of flight delays are identical.
H_a: The two populations of flight delays are not identical. H₀: Median delay time for airport 1 − Median delay time for airport 2 ≥ 0
H_a: Median delay time for airport 1 − Median delay time for airport 2 < 0H₀: Median delay time for airport 1 − Median delay time for airport 2 ≤ 0
H_a: Median delay time for airport 1 − Median delay time for airport 2 > 0H₀: Median delay time for airport 1 − Median delay time for airport 2 < 0
H_a: Median delay time for airport 1 − Median delay time for airport 2 = 0

Find the value of the test statistic.

W =

What is the p-value? (Round your answer to four decimal places.)

p-value =

What is your conclusion?

Do not reject H₀. There is sufficient evidence to conclude that there is a significant difference in length of flight delays for these two airports.Do not reject H₀. There is not sufficient evidence to conclude that there is a significant difference in length of flight delays for these two airports. Reject H₀. There is not sufficient evidence to conclude that there is a significant difference in length of flight delays for these two airports.Reject H₀. There is sufficient evidence to conclude that there is a significant difference in length of flight delays for these two airports.

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

13.18 Two piano strings with the same mass and the same length are to be tuned...

13.18 Two piano strings with the same mass and the same length are to be tuned to 440 Hz (A on the equal temperament scale). One string, with a tension of 300 N is already tuned to 440 Hz. The second string frequency is 435 Hz. a) Should the tension of string 2 be increased or decreased to tune the frequency to 440 Hz? b) How much must the tension of string 2 be changed to change the frequency from...

When two blocks collide, they each experience the same magnitude...(click ALL the correct responses) a- force...

When two blocks collide, they each experience the same magnitude...(click ALL the correct responses) a- force b- Impulse c- change in momentum d- change in velocity

If two blood vessels carry blood with the same viscosity. They have the same length but...

If two blood vessels carry blood with the same viscosity. They have the same length but different cross section areas where A1 > A2. IF the Hagan-Poiseuille Law applies and both vessels require the same flow rate. Which vessel has the larger pressure drop? Vessel 1 or Vessel 2?

Why do you think that growing old is not the same experience for all categories of...

Why do you think that growing old is not the same experience for all categories of people? How does race, social class, and gender shape the aging process? (explain)!

A pentagon is formed by adding two sides of the same length to attach an isoceles...

A pentagon is formed by adding two sides of the same length to attach an isoceles triangle to one side of a rectangle. If the area is fixed at A, what are the dimensions (in terms of A) that will minimize the pentagon's perimeter?

The entrance length can be significant when the pipe length is not relatively long. How do...

The entrance length can be significant when the pipe length is not relatively long. How do you determine the entry length and how it compares to the total pipe length? If the entry length is ignored what does that do the accuracy of the predicted pressure drop, is it too high or too low?

Why do different people experience the same disease differently? Or asked another way, why do pathogens...

Why do different people experience the same disease differently? Or asked another way, why do pathogens cause different symptoms in different people? Suggest two or more well-founded reasons for this difference.

Two machines are supposed to be producing steel bars of approximately the same length. A sample of...

Two machines are supposed to be producing steel bars of approximately the same length. A sample of 35 bars from one machine has an average length of 37.013 inches, with a standard deviation of 0.095 inches. For 38 bars produced by the other machine, the corresponding figures are 36.074 inches and 0.032 inches. Using a 0.05 level of significance and assuming equal population standard deviations, can we conclude that the machines are not different from each other? Construct and interpret the 95 percent confidence...

You are given two integer arrays a and b of the same length. Let's define the...

You are given two integer arrays a and b of the same length. Let's define the difference between a and b as the sum of absolute differences of corresponding elements: difference = |a[0] - b[0]| + |a[1] - b[1]| + ... + |a[a.length - 1] - b[b.length - 1]| You can replace one element of a with any other element of a. Your task is to return the minimum possible difference between a and b that can be achieved by...

24. What should you do when you have two records that represent the same entity, but...

24. What should you do when you have two records that represent the same entity, but both entries have been used in transactions? a. Merge the two records. b. Delete the two records. c. Merge the transactions that use the entity. d. Delete the transactions that use the entity. 25. Which statement reflects a valid reason for issuing a vendor credit? a. The vendor increases their bill. b. The vendor reduces their prices. c. The vendor owes the business for...

Subjects