For its new generation of airplanes, a commercial airline is considering three new designs of the...

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For its new generation of airplanes, a commercial airline is considering three new designs of the control panel. Let μ₁ denote the mean pilot response time to simulated emergency conditions with the current design and μ₂, μ3 and μ4 denote the mean response times with the three new designs. a. Identify the population(s) that is/are of interest to the researcher. b. Identify the variable that is of interest to the researcher. Is this variable discrete or continuous? c. Suppose that a total of 400 simulation trials were run in order to estimate pilot response times. However, the researchers would like to further examine 40 of these simulations in detail for determining other characteristics that may have influenced response times. Describe a procedure for selecting a simple random sample of 40 of the 400 simulations. Give the R commands for implementing this sampling procedure. d. Suppose that the researchers wanted to make sure that of the 40 simulations examined in further detail, 10 were from each of the four different designs. Further, assume that the 400 original simulations consisted of 250 simulations of the current design and 50 simulations from each of the three new designs. Describe this alternative procedure for selecting a representative random sample of size 40 from the population of 400 simulations. Give the R commands for implementing this sampling procedure. For its new generation of airplanes, a commercial airline is considering three new designs of the control panel. Let μ₁ denote the mean pilot response time to simulated emergency conditions with the current design and μ₂, μ3 and μ4 denote the mean response times with the three new designs. a. Identify the population(s) that is/are of interest to the researcher. b. Identify the variable that is of interest to the researcher. Is this variable discrete or continuous? c. Suppose that a total of 400 simulation trials were run in order to estimate pilot response times. However, the researchers would like to further examine 40 of these simulations in detail for determining other characteristics that may have influenced response times. Describe a procedure for selecting a simple random sample of 40 of the 400 simulations. Give the R commands for implementing this sampling procedure. d. Suppose that the researchers wanted to make sure that of the 40 simulations examined in further detail, 10 were from each of the four different designs. Further, assume that the 400 original simulations consisted of 250 simulations of the current design and 50 simulations from each of the three new designs. Describe this alternative procedure for selecting a representative random sample of size 40 from the population of 400 simulations. Give the R commands for implementing this sampling procedure.

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a The population of interest is the pilot response time to simulate... View the full answer