Question

1. The following hypotheses are given and reflect something you want to test about two samples:

You sample randomly from the first population a total of 18 observations and observe a standard deviation of 45. Then you sample from the second population 13 observations and calculate a standard deviation of 71. Testing at the 0.05 level of significance, make a decision about your hypotheses regarding these samples.

(A) The critical value is:______________(8)

2. (B) The test-statistic is: ________________ (10)

3. (C) Circle the correct response: (8)
   Decision: Reject H0 or Do not Reject H0

4. (D) In a sentence, describe what you would conclude here about your samples – explain this to your audience. Explain what your decision in (C) really means. (4) (Use statistical terms in your answer)

Answer 1