2.16 and 2.15 please!? You are given n = 8 measurements: 4, 1, 3, 1, 3, 1, 2, 2.

Question

2.16 and 2.15 please!?

You are given n = 8 measurements: 4, 1, 3, 1, 3, 1, 2, 2. Find the range. Calculate x-. Calculate s2 and s using the computing formula. Use the data entry method in your calculator to find x-, s, and s2. Verify that your answers are the same as those in parts b and c. You are given n = 8 measurements: 3, 1, 5, 6, 4, 4, 3, 5. Calculate the range. Calculate the sample mean. Calculate the sample variance and standard deviation. Compare the range and the standard deviation. The range is approximately how many standard deviations?

Explanation / Answer

2.15)

a) 3

b) 2.125

c) s = 1.26786, s2 = 1.12599

d) The answers are verified to be same. human errors are less in less data points

2.16)

a) 5

b) 3.875

c) varianc = 2.41071, SD = 1.55265

d) range is approximately 2 times the standard deviation

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