Multiple Choice
SCENARIO 10-14
The use of preservatives by food processors has become a controversial issue.Suppose two preservatives are extensively tested and determined safe for use in meats.A processor wants to compare the preservatives for their effects on retarding spoilage.Suppose 15 cuts of fresh meat are treated with preservative I and 15 are treated with preservative II,and the number of hours until spoilage begins is recorded for each of the 30 cuts of meat.The results are summarized in the table below.
-Referring to Scenario 10-14,suppose α = 0.05.Which of the following represents the correct conclusion?
A) There is no evidence of a difference in the population variances between preservatives I and II.
B) There is evidence of a difference in the population variances between preservatives I and II.
C) There is no evidence that the population variances between preservatives I and II are the same.
D) There is evidence that the population variances between preservatives I and II are the same.
Correct Answer:

Verified
Correct Answer:
Verified
Q2: SCENARIO 10-9<br>The following EXCEL output contains the
Q3: SCENARIO 10-3<br>A real estate company is interested
Q4: SCENARIO 10-13<br>The amount of time required
Q5: If we wish to determine whether there
Q6: The Wall Street Journal recently ran an
Q8: In testing for the differences between the
Q9: In testing for differences between the
Q10: SCENARIO 10-2<br>A researcher randomly sampled 30 graduates
Q11: SCENARIO 10-13<br>The amount of time required to
Q12: SCENARIO 10-7<br>A buyer for a manufacturing plant