Question

What is the range of Apple’s revenues for next year given their 2019 average sales levels...

What is the range of Apple’s revenues for next year given their 2019 average sales levels of of 260.17 billion and a standard deviation of revenue’s over the last 5 years of 11. Calculate this range at a 95% outcome level.

Show your work in Excel please. Thank you.

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Answer #1

In a normal distribution, 95% of the values will lie within 1.96 standard deviations of the mean.

Upper range of revenues = average revenues + (1.96 * standard deviation of revenues)

Lower range of revenues = average revenues - (1.96 * standard deviation of revenues)

Upper range of revenues = $281.73 billion

Lower range of revenues = $238.61 billion

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