Mathematics, 24.03.2021 09:40 brandon0227
A certain type of golfball is tested by a robot that hits the ball with a consistent impact force. The distances this type of ball travels in this test are normally distributed with a mean of 195 meters and a standard deviation of 5 meters. Suppose that quality control experts regularly collect random samples of 25 distance measurements and calculate the sample mean distance in each sample. Assume that the measurements in each sample are independent.
What will be the shape of the sampling distribution of the sample mean distance?
Skewed to the left
(Choice A)
A
Skewed to the left
(Choice B)
B
Skewed to the right
(Choice C)
C
Approximately normal
(Choice D)
D
Unknown; we don't have enough information to determine the shape
Answers: 3
and standard deviation 
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean 
.
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A certain type of golfball is tested by a robot that hits the ball with a consistent impact force. T...
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