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bezimeni [28]
1 year ago
14

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

  (c) b, c

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.

<h3>(a)</h3>

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

  1. 48
  2. 52
  3. 54

<h3>(b)</h3>

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

  range = 54 -48 = 6

<h3>(c)</h3>

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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