Suppose heights, in inches, of male orangutans have an unknown distribution with mean 56 and standard deviation 6 inches. A sample of size n  = 55 is randomly taken from the population and the mean is taken. Using the Central Limit Theorem for Means, what is the standard deviation for the sample mean distribution?

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A:

Q: The finishing times, in minutes, for running marathons have an unknown distribution with mean 297…

A: Mean = 297 Standard deviation = 32 Sample size = 41

Q: have a mean GPA of 2.57 with a standard deviation of 0.71. how many of the 850 new students have a…

A: Given that.   X~N( μ , ?)   μ=2.57   , ?=0.71    Z-score =( x - μ )/?

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 270 days…

A: Let "X" be the lengths of pregnancies in a small rural village in days.

Q: The incomes of a group of 10,000 persons were found to be normally distributed with mean equal to…

A: Given that, the income of the group is normally distributed.Total number of people: Mean: Standard…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation…

A: Solution Given: According to empirical rule (68-95-99.7 rule).

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.