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Determine if the preparation time is significantly longer

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Reference no: EM132514930

The IRS claims that it takes 87 minutes to complete a tax form. You believe it takes longer than 87 minutes. You ask 21 tax filers and find the following preparation times:

61, 69, 75, 79, 87, 89, 94, 96, 97, 98, 98, 99, 100, 100, 105, 108, 110, 117, 119, 122, 125

Determine if the preparation time is significantly longer than 87 minutes. Use α = .025.

Reference no: EM132514930

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