Suppose a scheduled flight must average at least 60% occupancy to be profitable. A sample of 120 flights on a particular route w
as studied: the mean occupancy rate per flight was 58% with a sample standard deviation of 11%. We would like to find out if there is sucient evidence to support a claim that this flight route is unprofitable. a) In terms of this problem, what is the Type I error? b) Define and find ↵. c) In terms of this problem, what is the Type II error? d) Define and find when the true mean occupancy rate is 0.62. e) Find the p-value associated with this test. What would you conclude at the 0.10 level
1 answer:
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Answer:
You have to multiply the denorminator to both sides in order to make x the subject :
Answer:
0.64 seconds
Step-by-step explanation:
In the equation provided:
h = −16t2 + 4t + 4
h is the height of the ball and t is time. Since we want to find the time when the ball touches the floor, then height is 0. This leaves us with the equation
-16 + 4t + 4 = 0
This is a quadratic equation can be solved with the following formula:
where a=-16
b=4
c=4
Solving for t we will find two different results:
Since time can't be negative, we discard t2 and choose t1.
Since it is required to answer in the nearest hundredth, we round the result to t=0.64 seconds.