Calculate and examine the standardized residuals. What? pattern, if? any, do they show that would be...

Calculate and examine the standardized residuals. What? pattern, if? any, do they show that would be of interest to retailers concerned about cybershopping? comparisons? Complete the table below. I have the background data below.

Calculate and examine the standardized residuals.
	>30K	>30 - 39.9K	>49.9- 74.9K	>75K
Yes
No

?

Observed
	< 30 k	30-49.9K	50 -74.9K	>75K	TOTAL
Yes	227	109	101	189	626
No	730	393	255	437	1815
	957	502	356	626	2441

Here is the expected data with Test Statistic:

Actual	Expected
227	245.4248	1.383211
109	128.739	3.026508
101	91.29701	1.031228
189	160.5391	5.045633
730	711.5752	0.477074
393	373.261	1.043853
255	264.703	0.355674
437	465.4609	1.740257
		14.10

Expert Solution

Solution

DF	3	?	0.05	?^2(crit)	7.814728
?^2(cal)	14.10344	p-value	0.002768	Reject H0
Oij
	j1	j2	j3	j4	Oi.
i1	227	109	101	189	626
i2	730	393	255	437	1815
O.j	957	502	356	626	2441

Eij
	j1	j2	j3	j4	Ei.
i1	245.4248	128.739	91.29701	160.5391	626
i2	711.5752	373.261	264.703	465.4609	1815
E.j	957	502	356	626	2441

?^2(ij)
	j1	j2	j3	j4	Total
i1	1.383211	3.026508	1.031228	5.045633	10.48658
i2	0.477074	1.043853	0.355674	1.740257	3.616859
Total	1.860285	4.070362	1.386902	6.78589	14.10344
only chi-square 12 and 14 are high. DONE

orchestra answered 2 years ago

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