An airline claims that the median price of a round-trip ticket is less than $503. For a random sample of 400 tickets, th

[answerhappygod]

An airline claims that the median price of a round-trip ticket
is less than $503. For a random sample of 400 tickets, the value of
the Wilcoxon sign-ranks test is T = T+ = 37,230.
a. Specify the competing hypothesis to determine whether the
median ticket price is less than $503.
b. Assume the normal approximation for the distribution of T,
and calculate the value of the corresponding test statistic.
c. At the 10% significance level, what is the decision and
conclusion?