Answer:
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Tyler is playing basketball with his friends, and he shoots an air ball from the three point line. The graph below represents th
e height of the basketball after x seconds.
Which statement represents the reasonable time when the basketball is in the air?
A.
The reasonable number of seconds when the basketball is in the air is between 0 seconds and 2.25 seconds.
B.
The reasonable number of seconds when the basketball is in the air is between 0 seconds and 2 seconds.
C.
The reasonable number of seconds when the basketball is in the air is between 0 seconds and 1.1 seconds.
D.
The reasonable number of seconds when the basketball is in the air is between 0 seconds and 2.5 seconds.
Which statement represents the reasonable time when the basketball is in the air?
A.
The reasonable number of seconds when the basketball is in the air is between 0 seconds and 2.25 seconds.
B.
The reasonable number of seconds when the basketball is in the air is between 0 seconds and 2 seconds.
C.
The reasonable number of seconds when the basketball is in the air is between 0 seconds and 1.1 seconds.
D.
The reasonable number of seconds when the basketball is in the air is between 0 seconds and 2.5 seconds.
1 answer:
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Answer:
We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 60
Sample mean, = 19.5
Sample size, n = 60
Alpha, α = 0.05
Population standard deviation, σ = 1.8
First, we design the null and the alternate hypothesis
We use One-tailed z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.