For each of the following, state whether you'd use one-sample or two-sample procedures to analyze the data, and explain why.

D. You want to know if there's a difference between the time it takes you to get
to school on the bus and the time it takes you to get to school when you get a
ride from a friend. Over a semester, you flip a coin to decide whether you'll
take the bus or get a ride. You record your travel time daily.

Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.