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Dafna11 [192]
3 years ago
11

When plotting sample statistics on a control chart, 99.7% of the sample statistic values are expected to fall within plus/minus

how many sigma?
Mathematics
1 answer:
Blababa [14]3 years ago
5 0

Answer:

By the Empirical Rule, \pm 3\sigma

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

The symbol of a standard deviation is \sigma. So

When plotting sample statistics on a control chart, 99.7% of the sample statistic values are expected to fall within plus/minus how many sigma?

By the Empirical Rule, \pm 3\sigma

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