Please help!!! Dont answer if u dont know! A population has a mean of 17 with a standard deviation of 2. A sample of 50 items from that population has a mean of 16.5 with a standard deviation of 2.4.

Which equation describes the point estimate?
A.
x = 16.5
B.
μ = 17
C.
x = 17
D.
μ = 16.5

Respuesta :

Answer:

A

Step-by-step explanation:

A point estimate is the sample value which is used to estimate the population parameter

Sample characteristics for population mean is sample mean, which is 16.5

The equation describes the point estimate that will be z = (50 - 17) / 2. Then the correct option is A.

What is the z-score?

The z-score is a statistical evaluation of a value's correlation to the mean of a collection of values, expressed in terms of standard deviation.

The z-score is given as

z = (x - μ) / σ

Where μ is the mean, σ is the standard deviation, and x is the sample.

A population has a mean of 17 with a standard deviation of 2. A sample of 50 items from that population has a mean of 16.5 with a standard deviation of 2.4.

Then the equation describes the point estimate that will be

z = (50 - 17) / 2

z = 33 / 2

z = 16.5

Thus, the correct option is A.

More about the z-score link is given below.

https://brainly.com/question/15016913

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