A new process for producing synthetic diamonds can be operated at a
profitable level only if the average weight of the diamonds produced by
the process is greater than 0.5 karat. To evaluate the profitability of
the process, a sample of six diamonds 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 diamonds produced by the new process is in excess
of 0.5 karat?
Additionally, to answer this question, an appropriate test of hypothesis using the five step process. The steps are as follows:
Step 1 State the hypotheses and identify the claim.
Step 2 Find the critical value(s).
Step 3 Compute the test value.
Step 4 Make the decision to reject or not reject the null hypothesis.
Step 5 Summarize the results