Author Question: Which statement best describes a parameter? A) A parameter is a numerical measure of a population ... (Read 159 times)

jake · **on:** Jun 24, 2018

Which statement best describes a parameter?

A) A parameter is a numerical measure of a population that is almost always unknown and must be estimated.
B) A parameter is an unbiased estimate of a statistic found by experimentation or polling.
C) A parameter is a level of confidence associated with an interval about a sample mean or proportion.
D) A parameter is a sample size that guarantees the error in estimation is within acceptable limits.

Question 2

A study of college students stated that 25 of all college students have at least one tattoo. In a random sample of 80 college students, let x be the number of the students that have at least one tattoo. Find the approximate probability that more than 30 of the sampled students had at least one tattoo.

A) 0.4929 B) 0.0034 C) 0.9929 D) 0.0071