Question

A video media consultant collected the following data on popular LCD televisions sold through on-line retailers. Screen Manufacturer (in inches) Price ($) Sharp 47 1,102.00 Samsung 32 423.25 Samsung 45 1,141.00 Sony 38 754.75 Sharp 661.00 Samsung 52 1,446.00 Samsung 995.25 Sharp 586.00 Sharp 1,622.50 Sony 1,659.00 Sony 481.50 Samsung 868.00 Sharp 609.00 Sharp 1,062.00 Sharp 1,604.00 Samsung 853.50 Sharp 530.25 Samsung 1,159.00 Sony 48 1,609.00 .25 Sony Sony Sony Sony 470.00

Answer 1

c-1. Price = -1,677.029 + 63.089*Screen Size

c-2. increase, 63.089

d. Price = -1,775.509 + 63.744*Screen + 156.431*Sony + 46.432*Sharp

e.

Term	T-value	p-value
Constant	-8.48	0.0000
Screen	13.64	0.0000
Sony	2.10	0.0492
Sharp	0.62	0.5398

The data is:

Sharp	Sony	Screen	Price
1	0	47	1102
0	0	32	423.25
0	0	45	1141
0	1	38	754.75
1	0	39	661
0	0	52	1446
0	0	41	995.25
1	0	38	586
1	0	48	1622.5
0	1	51	1659
0	1	30	481.5
0	0	43	868
1	0	35	609
1	0	43	1062
1	0	52	1604
0	0	43	853.5
1	0	37	530.25
0	0	47	1159
0	1	48	1609
0	1	38	549.25
0	1	50	1578.25
0	1	34	427.5
0	1	48	1470

Please give me a thumbs-up if this helps you out. Thank you!