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slapaburger slapaburger
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6 years ago
A company has claimed that the standard deviation of the monthly incomes of its employees is less than or equal to 120 . To test its claim, a random sample of 15 employees of the company was taken, and it was determined that the standard deviation of their incomes was 135 . At a 5 level of significance, test the company's claim.
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FvhdanFvhdan
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