Stats Solutions

[Solution] A random sample of 55 observations from one population revealed a sample mean of 18 and a sample deviation of 3. A random sample of 58 observations

Question: A random sample of 55 observations from one population revealed a sample mean of 18 and a sample deviation of 3. A random sample of 58 observations from another population revealed a sample mean of 20 and a sample standard deviation of 4. At the .05 significance level, is there a difference between the population means? The null and alternative hypotheses are as follows:

H o : u 1 = u 2

H a :u 1 ≠ u 2

  1. What is the decision rule? (When will you reject H o ?)
  2. What is the value of the test statistic?
  3. What is your decision regarding H o ? (Reject or Do Not Reject H o ?)

Price: $2.99
Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


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