The Table Below Shows Six Random Observations on the Number

question 68

Essay

The table below shows six random observations on the number of airline tickets booked on Orbitz per hour in the five months bracketing the summer travel season. State the most reasonable hypotheses. What test would a statistician probably use? How many total degrees of freedom? How many degrees of freedom for the treatment(s)? How many error degrees of freedom? Explain. Do not do the F-test.
$$\begin{array} { | c | c | c | c | c | } \hline \text { May } & \text { June } & \text { July } & \text { August } & \text { Sept } \\\hline 130 & 157 & 208 & 227 & 216 \\204 & 230 & 252 & 250 & 196 \\147 & 208 & 234 & 213 & 179 \\121 & 200 & 288 & 260 & 188 \\100 & 158 & 266 & 255 & 210 \\120 & 234 & 266 & 292 & 211 \\\hline\end{array}$$

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Definitions:

End-diastolic Volume

The volume of blood in the ventricles at the end of diastole, immediately before contraction.

End-systolic Volume

This is the volume of blood left in the ventricle at the end of systole, just before the heart fills again during diastole.

Stroke Volume

The amount of blood pumped by the left ventricle of the heart in one contraction, indicating cardiac efficiency.

Cardiac Output

The quantity of blood circulated by the heart through the vascular system every sixty seconds.