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Random sample of five resulted in the values

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Reference no: EM131468939

Given the hypothesis: H0: μ≥18 & Ha: μ<18, a random sample of five resulted in the following values: 17, 18, 20, 16, & 15. Using the .01 significance level, can we conclude the population mean is less than 18?

  1. Is this a Z or t test?
  2. Test statistic = ?
  3. Critical value = ?
  4. Reject Ho: (yes or no)

Reference no: EM131468939

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