Do people walk faster in the airport when they are departing (getting on a plane) or do they walk faster when they are arriving (getting off a plane)? A reputable researcher measured the walking speed of random travelers in two Intermational Airports. His findings are summarized in the table. Complete parts (a) (c) below. E Click the icon to view the findings. (a) Is this an observational study or a designed experiment? Why? Walking Speed O A. This is an observational study since the researcher did not influence the data. O B. This is a designed experiment since the researcher did not influence the data O C. This is an observational study since the researcher influenced the data. Arrival 267 Direction of Travel Mean speed (feet per minute) Standard deviation Departure 257 O D. This is a designed experiment since the researcher influenced the data. 45 35 (b) Explain why it is reasonable to use Welch's t-test. (feet per minute) Sample size 35 35 O A. The samples are random, large and dependent. O B. The populations are normally distributed Print Done O C. The samples are random, small and independent. O D. The samples are random, large and independent.

Do people walk faster in the airport when they are departing (getting on a plane) or do they walk faster when they are arriving (getting off a plane)? A reputable researcher measured the walking speed of random travelers in two Intermational Airports. His findings are summarized in the table. Complete parts (a) (c) below. E Click the icon to view the findings. (a) Is this an observational study or a designed experiment? Why? Walking Speed O A. This is an observational study since the researcher did not influence the data. O B. This is a designed experiment since the researcher did not influence the data O C. This is an observational study since the researcher influenced the data. Arrival 267 Direction of Travel Mean speed (feet per minute) Standard deviation Departure 257 O D. This is a designed experiment since the researcher influenced the data. 45 35 (b) Explain why it is reasonable to use Welch's t-test. (feet per minute) Sample size 35 35 O A. The samples are random, large and dependent. O B. The populations are normally distributed Print Done O C. The samples are random, small and independent. O D. The samples are random, large and independent.

Name: 2/12 Do people walk faster in the airport when they are departing (get
Uploaded: 2024-03-20T06:46:55.000Z
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Description: 2/12 Do people walk faster in the airport when they are departing (getting on a plane) or do they walk faster when they are arriving (getting off a plane)? A reputableresearcher measured the walking speed of random travelers in two International Airp