Glendale is one of the many five-star hotels in the country. The management has a policy that the customers’ waiting time at the checkout counter should not be more than 10 minutes. In a study the management recorded the waiting times for 60 customers. The customers were selected using a systematic random sampling process. The data were analysed using SPSS. Some of the output from the analysis are shown in figure 1.
Glendale is one of the many five-star hotels in the country. The management has a policy that the customers’ waiting time at the checkout counter should not be more than 10 minutes. In a study the management recorded the waiting times for 60 customers. The customers were selected using a systematic random sampling process. The data were analysed using SPSS. Some of the output from the analysis are shown in figure 1.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Glendale is one of the many five-star hotels in the country. The management has a policy that the customers’ waiting time at the checkout counter should not be more than 10 minutes. In a study the management recorded the waiting times for 60 customers. The customers were selected using a systematic random sampling process. The data were analysed using SPSS. Some of the output from the analysis are shown in figure 1.
- State the objective in this.
- Write the
mean andmedian waiting times and interpret the values. - What can be said about the data distribution?
- State the 95% confidence interval for the mean waiting time for all the customers at the checkout counter and interpret what this interval means.
- Test if the mean waiting time is more than 10 minutes.

Transcribed Image Text:Figure 1
Statistic
Std. Error
Mean
14.5
.37
95% Confidence
Lower Bound
13.8
Interval for Mean
Upper Bound
15.3
5% Trimmed Mean
14.5
Median
14.0
Variance
8.3
Time
Std. Deviation
2.8
Minimum
8.0
Мaximum
22.0
Range
14.0
Interquartile Range
4.5
Skewness
.153
.309
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