TABLE 12-7
Data on the percentage of 200 hotels in each of the three large cities across the world on whether minibar charges are correctly posted at checkout are given below.
At the 0.05 level of significance, you want to know if there is evidence of a difference in the proportion of hotels that correctly post minibar charges among the three cities.
-Referring to Table 12-7, the null hypothesis will be rejected.
Definitions:
Confidence Interval
A range of values, derived from sample data, that is likely to include the value of an unknown population parameter.
Standard Deviation
A statistic that measures the dispersion or variability of a dataset relative to its mean, indicating how spread out the data points are.
Proportion
The fraction or percentage that represents a part of a whole or any number of items in relation to the total.
Confidence Interval
A range of values, derived from the statistics of observed data, that is likely to contain the value of an unknown population parameter.
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