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Conclude difference of means

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Reference no: EM132158955

Sample 1 from Population 1

  • Mean 80
  • population variance 3
  • sample size 25

Sample 2 from Population 2

  • Mean 81
  • Population variance 2
  • Sample size 50

Note that the population variance are know. Test HO: (population1 mean - population 2 mean) ≤ 0 at α  = 0.05. HA: (population 1 mean -population 2 mean) > 0. This is a one tailed test with upper reject region and positive critical value. 

Select an option

A. Pvalue 0.9938. HO not rejected. Conclude difference of means ≤ 0 is > plausible

B. Pvalue 0.0124. HO rejected. Conclude difference of means > 0.

C. Pvalue 0.0062. HO rejected. Conclude difference of means > 0.

Reference no: EM132158955

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