Point Estimate of the Population Proportion

When α = 0.01, the critical values are:

• ±1.65

• ±1.96

• ±2.33

• ±2.58

Which of the following are the 95% confidence coefficients?

• ±1.65

• ±1.96

• ±2.33

• ±2.58

When n < 30, what is the appropriate distribution?

• z

• t

• q

• p

Which of the following indicates a confidence interval?

• 0.95

• 99%

• 100

• 54 - 59

Which of the following illustrates a confidence level?

• 95%

• 12,5

• 50.0

• 90 - 95

What is degrees of freedom equal to?

• n - 1

• n + 1

• n

• 1 - n

A point estimate is a range of values.

• true

• false

A confidence coefficient is a multiplier of a standard error.

• true

• false

The mean of the sampling distribution of "p hat" is

• X

• t

• z

• p

What is the unbiased estimator of p?

• myu

• p hat

• q hat

• pq