Production engineers at Sinotron believe that a modified layout on its assembly

Question

Production engineers at Sinotron believe that a modified layout on its assembly lines might increase average productivity (measured in the number of untis produced per hour).  However, before the engineers are ready to install the revised layout officially across the entire firm's production lines, they would like to study the modified line's effects on output.  The data available from the link to this question represent the average hourly production output of 12 randomly selected employees before and after the line was modified.  Use a confidence coefficient of 95%, and perform the appropriate hypothesis test.  What are the values of (Round to two decimal places):

(a) Alpha Value = Blank 1

(b) P-Value = Blank 2

(c) Reject (Y or N) = Blank 3

Employee Before After 1 49 49 2 45 46 3 43 48 4 44 50 5 48 46 6 42 50 7 46 45 8 46 46 9 49 47 10 42 51 11 46 51 12 44 49

Explanation / Answer

(a) Alpha Value =0.05

(b) P-Value =0.0296

(c) Reject: No.

45.333 mean Before
48.167 mean After

-2.833 mean difference (Before - After) 3.927 std. dev.

1.134 std. error

12 n

11 df

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.