Homework Soursethe weights of people in a certain population are normally d
the weights of people in a certain population are normally distributed with a mean of 157 lb and a standard deviation of 23 lb. find the mean and standard error of the mean for this sampling distribution when using random samples of size 8
the weights of people in a certain population are normally distributed with a mean of 157 lb and a standard deviation of 23 lb. find the mean and standard error of the mean for this sampling distribution when using random samples of size 8
the weights of people in a certain population are normally distributed with a mean of 157 lb and a standard deviation of 23 lb. find the mean and standard error of the mean for this sampling distribution when using random samples of size 8
Solution
By the central limit theorem, they have the same mean,
mean = 157 lb [ANSWER]
However, the standard error will be divided by sqrt(n),
standard error = = 23/sqrt(8) = 8.131727984 [ANSWER]
