eda

Question 1

statistical inference

Answer 1

statistical inference

Question 2

(a reasonable value) of a population parameter

Answer 2

point
estimate

Question 3

the observations are considered to be random variables, say, Therefore, any function of the observation, or any statistic,

Answer 3

random variable

Question 4

Because a statistic is a random variable, it has a probability distribution. Wecall theprobability distribution of a statistic a

Answer 4

sampling distribution.

Question 5

of some population parameter θ is a single numerical
value of a statistic

Answer 5

point estimate

Question 6

The statistic � is called the

Answer 6

point estimator.

Question 7

is any function of the observations in a random sample

Answer 7

statistic

Question 8

observed data

Answer 8

random sample

Question 8

is computed by dividing the number of individuals in
the sample who prefer the brand of soft drink by the total sample size �

Answer 8

sample proportion

Question 9

A way to avoid this is to report the
estimate in terms of a range of plausible values called a

Answer 9

confidence interval.

Question 10

estimate for μ is an interval of the form l ≤ μ ≤
u, where the end-points l and u are computed from the sample data.

Answer 10

confidence interval