1 For the interval estimation of when is known and the sampl

1. For the interval estimation of when is known and the sample is large, the proper distribution to use is.

a. the normal distribution

b. the t distribution with n degrees of freedom

c. the t distribution with n + 1 degrees of freedom

d. the t distribution with n + 2 degrees of freedom

2. An estimate of a population parameter that provides an interval of values believed to contain the value of the parameter is known as the.

a. confidence level

b. interval estimate

c. parameter value

d. population estimate

3. The value added and subtracted from a point estimate in order to develop an interval estimate of the population parameter is known as the.

a. confidence level

b. margin of error

c. parameter estimate

d. interval estimate

4. Whenever the population standard deviation is unknown and the population has a normal or near-normal distribution, which distribution is used in developing an interval estimation?

a. standard distribution

b. z distribution

c. alpha distribution

d. t distribution

1. For the interval estimation of when is known and the sample is large, the proper distribution to use is.

a. the normal distribution

b. the t distribution with n degrees of freedom

c. the t distribution with n + 1 degrees of freedom

d. the t distribution with n + 2 degrees of freedom

2. An estimate of a population parameter that provides an interval of values believed to contain the value of the parameter is known as the.

a. confidence level

b. interval estimate

c. parameter value

d. population estimate

3. The value added and subtracted from a point estimate in order to develop an interval estimate of the population parameter is known as the.

a. confidence level

b. margin of error

c. parameter estimate

d. interval estimate

4. Whenever the population standard deviation is unknown and the population has a normal or near-normal distribution, which distribution is used in developing an interval estimation?

a. standard distribution

b. z distribution

c. alpha distribution

d. t distribution

Note:

When population standard deviation is known we use normal distribution.

When population standard deviation is not known we use t distribution

1. For the interval estimation of when is known and the sample is large, the proper distribution to use is.

a. the normal distribution

b. the t distribution with n degrees of freedom

c. the t distribution with n + 1 degrees of freedom

d. the t distribution with n + 2 degrees of freedom

2. An estimate of a population parameter that provides an interval of values believed to contain the value of the parameter is known as the.

a. confidence level

b. interval estimate

c. parameter value

d. population estimate

3. The value added and subtracted from a point estimate in order to develop an interval estimate of the population parameter is known as the.

a. confidence level

b. margin of error

c. parameter estimate

d. interval estimate

4. Whenever the population standard deviation is unknown and the population has a normal or near-normal distribution, which distribution is used in developing an interval estimation?

a. standard distribution

b. z distribution

c. alpha distribution

d. t distribution

Note:

When population standard deviation is known we use normal distribution.

When population standard deviation is not known we use t distribution