MATH 220 Lecture Notes - Lecture 6: Sampling Distribution, Central Limit Theorem, Standard Deviation
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Construct the sampling distribution of a sample mean. Each face on a tetrahedral die corresponds to a number between 1 and 4, so that when you toss it, it comes up with one of the numbers 1, 2, 3, or 4. Tossing a tetrahedral die is like sampling a value from the population. Population variance: be the mean of a simple random sample of size n, drawn from a population with. The standard deviation of the sampling distribution is. The standard deviation is sometimes called the standard error of the mean. Among students at a certain college, the mean number of hours of television watched per week is. A simple random sample of 16 students is chosen for a study of viewing habits. Let be the mean number of hours of tv watched by the sampled students. Find the mean and the standard deviation of. The sample size is n = 16.
