Global Airlines operates two types of jet planes: jumbo and ordinary. On jumbo jets, 25 of the passengers are on business, while on ordinary jets 30 of the passengers are on business. Of Global's air fleet, 40 of its capacity is provided on jumbo jets. (Hint: You have been given two conditional probabilities.)
a. What is the probability a randomly chosen business customer flying with Global is on a jumbo jet?
b. What is the probability a randomly chosen non-business customer flying with Global is on an ordinary jet?
Question 2
When the area corresponding to the critical value is in the lower tail of the sampling distribution, the p-value is the area under the curve
a. less than or equal to the critical value.
b. less than or equal to the test statistic.
c. greater than or equal to the critical value.
d. greater than or equal to the test statistic.
Three types of dispersion.
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