Question

20 points and marked brainlyist help me ASAP

Answer 1

Answer + Step-by-step explanation:

(a)

Check the attached image.

(b)

Range of sample means : 7.5 - 5.75 = 1.25

(c)

The closer the range of the sample means is to 0 ,

the more confident they can be in their estimate . $\huge \checkmark$

The farther the range of the sample means is from 0 ,

the more confident they can be in their estimate . 

The mean of the sample means will tend to be a better estimate

than a single sample mean . $\huge \checkmark$

A single sample mean will tend to be a better estimate

than the mean of the sample means .