price deregulation in the airline industry has promoted competition and a variety of fare structures. prior to deciding on a price change, a particular airline is interested in obtaining an estimate of the proportion of the market that it presently captures for a certain region. a random sample of 300 passengers indicates that 80 used that airline.

find a point estimate of the proportion of the market that uses this particular airline.

Choices:

A.0.371

B.0.932

C.0.152

D.0.267

then find a 95% confidence interval for the proportion that uses this airline

choices

A.(0.117, 0.217)

B.(0.217, 0.317)

C.(0.317, 0.417)

D.(0.417, 0.517)

can the airline conclude that its market share is more than 25% use a level of significance of .01

choices

true or false