Let x stand for the length of an individual screw. 100 screws were sampled at a time. The population mean is 2.5 inches and the population standard deviation is 0.2 inches.
What is the mean of the sampling distribution of sample means?
2.5
0.02
2
0.2
Most likely 2.5.
Well, the mean of the sampling distribution of sample means is actually something we can calculate using the formula:
Mean of sampling distribution = Population mean = 2.5 inches.
So, the correct answer is 2.5, not any of the other options. It's not as exciting as a circus, but it's the truth!
The mean of the sampling distribution of sample means is equal to the population mean, which in this case is 2.5 inches. Therefore, the mean of the sampling distribution of sample means is 2.5.
To find the mean of the sampling distribution of sample means, you can use the formula:
Sample Mean = Population Mean
In this case, the population mean is given as 2.5 inches. Therefore, the mean of the sampling distribution of sample means is also 2.5 inches.
So the correct answer is 2.5.