In: Statistics and Probability
Assume that the differences are normally distributed. Complete parts (a) through (d) below.
Observation |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
|
---|---|---|---|---|---|---|---|---|---|
Upper X Subscript iXi |
52.852.8 |
44.044.0 |
45.745.7 |
41.441.4 |
47.047.0 |
47.647.6 |
50.650.6 |
46.746.7 |
|
Upper Y Subscript iYi |
53.253.2 |
45.745.7 |
50.550.5 |
45.545.5 |
48.648.6 |
47.947.9 |
51.351.3 |
46.646.6 |
(a) Determine
d Subscript i Baseline equals Upper X Subscript i Baseline minus Upper Y Subscript idi=Xi−Yi
for each pair of data.
Observation |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
---|---|---|---|---|---|---|---|---|
di |
negative . 4−.4 |
negative 1.7−1.7 |
negative 4.8−4.8 |
negative 4.1−4.1 |
negative 1.6−1.6 |
negative . 3−.3 |
negative . 7−.7 |
. 1.1 |
(Type integers or decimals.)
(b) Compute
d overbard
and
s Subscript dsd.
d overbardequals=negative 1.688−1.688
(Round to three decimal places as needed.)
s Subscript dsdequals=1.8231.823
(Round to three decimal places as needed.)
i was wondering how to calculate the Sd for this problem on paper and the steps for it on statcrunch, thanks