Question

City Hotel Room Rate ($) Entertainment ($)

Boston 146 162

Denver 96 105

Nashville 87 102

New Orleans 107 140

Phoenix 91 99

San Diego 104 118

San Francisco 140 166

San Jose 93 140

Tampa 81 100

Develop a scatter diagram for these data with the room rate as the independent variable what does the scatter diagram developed in part (a.) indicate about the relationship between the two variables develop the least squares estimated regression equation provide an interpretation for the slope of the estimated regression equation the avg room rate in Chicago is $128 considerably higher than the U.S avg predict the entertainment expense per day in Chicago

Answer 1

x	y	xy	x2
146	162	23652	21316
96	105	10080	9216
87	102	8874	7569
107	140	14980	11449
91	99	9009	8281
104	118	12272	10816
140	166	23240	19600
93	140	13020	8649
81	100	8100	6561
945	1132	123227	103457	Total
105	125.7778			Mean

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on putting the required values

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By increasing one unit of Room rate the Entertainment rate will on an average will increase by 1.032 units

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