20 points please help me I'm desperate and I will mark brainlyist

Mathematics

1 answer:

polet [3.4K]1 year ago

5 0

Answer:

(a) 48, 52, 54

(b) 6

Step-by-step explanation:

The sample mean is the mean of the sample. The range of sample means is the difference between the largest and smallest. As with all sampling processes, more data gives a better estimate.

The sample means are calculated in the attachment. For the different samples, they are ...

The range of the sample means is the difference between the largest and the smallest:

range = 54 -48 = 6

More data is better, and the closer the estimates are to each other, the better confidence they offer. The true statements are ...

A single sample mean will tend to be a worse estimate than the mean of the sample means.
The closer the range of sample means is to zero, the more confident they can be in their estimate.

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