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Activity2solution

# Activity2solution - Activity 2Solutions 1 A random sample...

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Activity 2Solutions 1. A random sample of size n = 30 is taken from a population with mean μ and standard deviation σ . Which statement is generally correct? (4 pts) a. X is an estimate of μ ; s is an estimate of σ . b. μ is an estimate of X ; σ is an estimate of s . c. μ is an estimate of X ; s is an estimate of the standard deviation of the sample mean. d. X is an estimate of μ ; s is an estimate of the standard deviation of the sample mean. e. X is an estimate of μ ; s is the standard error of the sample mean. 2. Suppose we draw a random sample from a population which is normally distributed with mean 20 and s.d. 5. Assuming the sample points are drawn independently, which of the values can the sample size be equal to, so that the sample mean follows a normal distribution? ( 4 pts) 3. As the sample size increases, the standard error of the sample mean ____________(select the best response): ( 4 pts)

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Activity2solution - Activity 2Solutions 1 A random sample...

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