octavienjouly5876 octavienjouly5876
  • 21-04-2024
  • Mathematics
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Consider the following hypotheses test. H0: ≥ 80 Ha: < 80 A sample of 100 provided a sample mean of 77.2. The population standard deviation is known to be 15.

(a) Compute the value of the test statistic. (Round your answer to two decimal places.)

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