Assume that the differences are normally distributed. Complete parts ​(a) through ​(d) below. Observation12345678 Upper X Subscript iXi52.147.447.647.347.347.448.849.2Upper Y Subscript iYi53.948.149.751.248.549.852.148.4​(a) Determined Subscript i Baseline equals Upper X Subscript i Baseline minus Upper Y Subscript idi=Xi−Yifor each pair of data. Observation12345678dinegative−1.8negative −0.7negative −2.1negative −3.9negative −1.2negative −2.4negative −3.30.8​(Type integers or​ decimals.)​(b) Computed overbardands Subscript dsd. d overbard=nothing​(Round to three decimal places as​ needed.)

Question
Asked Nov 21, 2019
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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
52.1
47.4
47.6
47.3
47.3
47.4
48.8
49.2
Upper Y Subscript iYi
53.9
48.1
49.7
51.2
48.5
49.8
52.1
48.4
​(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
−1.8
negative −0.7
negative −2.1
negative −3.9
negative −1.2
negative −2.4
negative −3.3
0.8
​(Type integers or​ decimals.)
​(b) Compute
d overbard
and
s Subscript dsd.
 
d overbard=nothing
​(Round to three decimal places as​ needed.)
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