The results of a survey comparing the cost of staying one night in a full-servic

Question

The results of a survey comparing the cost of staying one night in a full-service hotel (including food, beverages, and telephone calls, but not taxes) for several major cities is given in the following results:

a. Does the data suggest that there is a significant difference in the average cost of one night in a full-service hotel among the five major cities at a=0.05?

b. What assumptions were made in the test for part a?

5. The results of a survey comparing the cost of staying one night in a full-service hotel (including food, beverages, and telephone calls, but not taxes) for several major cities is given in the following results: a. Does the data suggest that there is a significant difference in the average cost of one night in a full-service hotel among the five major cities at a 0.05? s: What assumptions were made in the test for part-a? Phoenix Houston New York Los Angeles Atlanta $138 S95 S90 $140 $200 Cost of $140 $90 $98 $150 $220 One Night in a Full- $225 $136 $100 S85 $130 $92 $95 $148 $145 $250 Service $98 $128 $82 $135 Hotel $175

Explanation / Answer

(a)

Since the p- value = 0, we reject Ho. There is a significant difference between the rates in the five cities

(b)

1. Samples are randomly selected from the populations.
2. All the populations from which the samples are drawn follow the normal probability distribution.
3. All the populations from which samples are drawn have the same variance.

Anova: Single Factor SUMMARY Groups Count Sum Average Variance NY 5 1070 214 792.5 LA 5 700 140 62.5 Atlanta 5 450 90 44.5 Houston 5 475 95 17 Phoenix 5 690 138 52 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 49496 4 12374 63.8822922 4.17224E-11 2.866081402 Within Groups 3874 20 193.7 Total 53370 24

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