c) What is the probability that at least 90% of the randomly selected booked passengers showed up on time? Fill in below with the correct random variable and inequality symbol in the probability statement. Round final answer to 4 decimal places. 0.9) = d) Is 80% an unusually low percentage of booked passengers that show up on time for their flight in a sample of 219? • Since P(? Select an answer v an unusually low percentage of booked passengers that show up on time for their flight in a sample of 219 What might you conclude about the population if you observe a sample percentage this low? Select an answer 80%) = which is ? v 80%

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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please do parts C and D!!!

Assume 83% of people actually show up for their flight on time. Because of this, airlines tend to overbook
flights. A random sample of 219 booked passengers is taken and whether or not they showed up on time is
recorded for each of them.
Transcribed Image Text:Assume 83% of people actually show up for their flight on time. Because of this, airlines tend to overbook flights. A random sample of 219 booked passengers is taken and whether or not they showed up on time is recorded for each of them.
c) What is the probability that at least 90% of the randomly selected booked passengers showed up on
time?
Fill in below with the correct random variable and inequality symbol in the probability statement.
Round final answer to 4 decimal places.
P(? v ?v 0.9) =
d) Is 80% an unusually low percentage of booked passengers that show up on time for their flight in a
sample of 219?
Since P(? v ?v 80%) =
which is ? v
80%
Select an answer v an unusually low percentage of booked passengers that show up on time for
their flight in a sample of 219
• What might you conclude about the population if you observe a sample percentage this low?
Select an answer
e) Is 75% an unusually low percentage of booked passengers that show up on time for their flight in a
sample of 219?
Since P? v ?v 75%) =
which is ? v
75%
Select an answer v an unusually low percentage of booked passengers that show up on time for
their flight in a sample of 219.
• What might you conclude about the population if you observe a sample percentage this low?
Select an answer
Transcribed Image Text:c) What is the probability that at least 90% of the randomly selected booked passengers showed up on time? Fill in below with the correct random variable and inequality symbol in the probability statement. Round final answer to 4 decimal places. P(? v ?v 0.9) = d) Is 80% an unusually low percentage of booked passengers that show up on time for their flight in a sample of 219? Since P(? v ?v 80%) = which is ? v 80% Select an answer v an unusually low percentage of booked passengers that show up on time for their flight in a sample of 219 • What might you conclude about the population if you observe a sample percentage this low? Select an answer e) Is 75% an unusually low percentage of booked passengers that show up on time for their flight in a sample of 219? Since P? v ?v 75%) = which is ? v 75% Select an answer v an unusually low percentage of booked passengers that show up on time for their flight in a sample of 219. • What might you conclude about the population if you observe a sample percentage this low? Select an answer
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