P value

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 Airports. His findings are summarized in the table. Complete parts (a)-(c) below. Click the icon to view the findings. (a) Is this an observational study or a designed experiment? Why? O A. This is a designed experiment since the researcher did not influence the data. OB. This is a designed experiment since the researcher influenced the data. C. This is an observational study since the researcher did not influence the da Walking Speed D. This is an observational study since the researcher influenced the data. (b) Explain why it is reasonable to use Welch's t-test. Direction of Travel Departure Arrival Mean speed 255 273 A. The populations are normally distributed. (feet per minute) O B. The samples are random, large and dependent. Standard deviation 46 30 (feet per minute) &C. The samples are random, large and independent. Sample size 35 35 D. The samples are random, small and independent. (c) Do individuals walk at different speeds depending on whether they are departin State the null and alternative hypothesis. Print Done OA. HO: H1 = H2 H1: H1 > H2 H1: Hy

H2 Determine the P-value for this hypothesis test. P-value = (Round to three decimal places as needed.) Help me solve this View an example Get more help - MacBook Air