Question: Assume that the differences are normally distributed. Complete parts (a) through (d) below. Observation 1 2 3 4 5 6 7 8 Xi 48.4 51.2

Assume that the differences are normally distributed. Complete parts (a) through (d) below.

Observation

1

2

3

4

5

6

7

8

Xi

48.4

51.2

43.9

42.9

53.7

48.6

48.1

46.2

Yi

48.5

49.6

46.8

48.2

54.1

52.2

48.4

48.8

(a) Determine di=XiYi for each pair of data.

Observation

1

2

3

4

5

6

7

8

di

_______

_______

_______

______

_______

_____

______

______

(b) Compute d and sd

d= _____

sd _____

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