Question Help Do people walk faster in the airport when they are departing lgett

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Question Help Do people walk faster in the airport when they are departing lgetting on a plane) or Hs fedare summarized in table. Complete parts (a) (c) below ne summarired inthe e n pnethey are wmhving (gtigoff Hareund the waking sped of tandam ters in two Intemtal bravelers in two Intemational Airports Click the icon to view the findings kk the icon to view the find ngs la) Is this an observational study or a designed experiment? Why? A. This is a designed experiment since the researcher did not infuence the data B. Walking Speed Tis is an observati nal shly sice the researcher influenced the data Direction of Travel Departure Atival O C. This is a designed experiment since the researcher influenced the data D. This is an observational study since the researcher dd not ituence the data b) Explain why i is reasonable to use Welch's t test feet per minute Standard deviation 52 Teet per minde) Sample size 38 35 35 A. The samples are random large and independent O B. The populations are normally dstributed C. The samples are rankm large ad dependent D. The samples are fandern, smal independent Print Done c) Do individuals walk n afflerent speeds depending on whethr they are departing or ariving at the a 1 level of sigficance? Let u ropresent the mean speed of people departing and py represent the mean speed of peopie arriving State the mull and altemative hypothesirs Cack to select your answers)

Explanation / Answer

a) Correct Answer :Option (D)

b) Correct Answer: Option (B)

c) H0: There is no significance difference between departing and arriving.

H1:There is significance difference between departing and arriving

Correct Option (A)

d) P-value = 0.047

Here P -value < alpha (0.05) we reject H0.

i.e. There is significant difference between departing and arriving.

Correct Answer: Option (C)

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