Question

Please identify the type of data that you are working with – on what type of measurement scale(s) where the selected variables measured by the original data collectors. (As you work with the dataset given by me, use your educated guess).

Describe the data with the tools of descriptive statistics, using both numerical as well as graphical methods. In addition to reporting and commenting on the values central tendency and diagrams, please also justify the choice of method (e.g. why a particular kind of measure of central tendency was selected and the chosen graphic is appropriate to use in this context).

Formulate the null and research (alternative) hypothesis

Determine the test criteria:

- Specify the level of significance (Type I error associated with the null hypothesis)

- Determine the test statistic (the appropriate statistical test as mentioned under point 5 above)

- Determine the critical values (and region(s) if applicable)

Calculate the value of the test statistic (obtained value)

Shift	Stress
1	2
1	5
1	7
1	8
1	5
1	4
1	3
1	6
1	5
1	4
2	4
2	5
2	3
2	6
2	16
2	11
2	9
2	8
2	12
3	7
3	13
3	10
3	16
3	11
3	11
3	7
3	3
3	10
3	15
3	12

Answer 1

ConSides n n 15 Shess Shift Stess-Shift toso - 13 lo 10 12. lo I5 12 I6 83 155 Average 5.533 6 333 Mean X > 83 5.53 (Shift L) X155 -15. -10.33 CShift 2)

Sol Sample va monte S. ECx--) N-I for Shifi 1 s (15-1) 12-4609 t 0,2801+ θ.1609+ 6-1DO9tA-3409 t 6.4009+0.20คุ t 0,2209 + 0.2809 t a .3409 a.3409+0.2809十 y009 +aao lo.6209 14 14

S 51 335 Sample Slordaod deviaHonS 3.28118 The dato aboul the Shlfs, löken Hence the test StaHSKS is total no. of Shrt; Nall hypothesis #D: L,:JI, Alternobve hypothten's a: tH">. 山? Ju, are apoge No. of Shifts C) Levfe of Signi-Icome:- C Coical value o tuoo toil testdf - n-]

Test Stolishc Value:- ni t. 5.53 10 33 o. 838107-10, 80953 5 15 -냐'g -4.8 1-44 3175 4.8 1. 201322 t3.995 Conclusion'- Obserwes tast Statistics is in the lefA-toil vejection region Thevefore coe vejed Ho value