A new process for producing rubies can be operated at a profitable level only if the average weight of the rubies produced by the process is greater than 0.5 karat. To evaluate the profitability of the process, a sample of six rubies was generated using this new process, with recorded weights .46, .61, .52, .48, .57, and .54 karat. Do the six measurements present sufficient evidence to indicate that the average weight of the rubies produced by the new process is in excess of 0.5 karat? To answer this question conduct an appropriate test of hypothesis using the five step process outlined.
Step 1 Step 2 Step 3 Step 4 Step 5
State the hypotheses and identify the claim.Find the critical value(s).Compute the test value.Make the decision to reject or not reject the null hypothesis. Summarize the results.