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Statewide, social workers average 10.2 years of experience, with a standard deviation of 0.52. In a random sample, 203 social workers in greater metropolitan Shinbone
Statewide, social workers average 10.2 years of experience, with a standard deviation of 0.52. In a random sample, 203 social workers in greater metropolitan Shinbone average only 8.7 years. Are social workers in Shinbone significantly less experienced? a. Identify each of the following, using the given information. Sample Mean= Blank 1 = Blank 2 N = Blank 3 = Blank 4 b. Write the null hypothesis and alternate hypothesis using statistical language. As you cannot use greek letters, in your response use "Mean" for X-Bar and "Population Mean" for . For your operations, use =, <, >, and =/= (does not equal). Null: Blank 5 Alternate: Blank 6 c. Assume that the alpha level is 0.05. What would be the critical z-score? In other words, what z-score is our cut-off for the rejection region? Blank 7 d. Calculate the obtained z-score for this problem. Blank 8 Make a decision. Based on your calculations, which hypotheses would we reject? Which would we accept? (Reject Null or Accept Null? Reject Alternate or Accept Alternate?) Blank 9 Blank 1 Blank 2 Blank 3 Blank 4 Blank 5 Blank 6 Blank 7 Blank 8 Blank 9
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