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Variable Mean Std. dev.
Amount stolen (pounds sterling) 20,330.5 53,510.2Number of bank staff present 5.417 4.336Number of customers present 2.000 3.684Number of bank raiders 1.637 0.971Travel time, in minutes from bank To nearest police station 4.557 4.028 Bank Robberies: A Statistical Analysis
a. Identify and interpret a point estimate for the mean of each of the five aforementioned variables.
b. Find and interpret a 95% confidence interval for the mean amount stolen.
c. Find and interpret a 95% confidence interval for the mean number of bank staff present at the time of robberies.
d. Determine and interpret a 95% confidence interval for the mean number of customers present at the time of robberies.
e. Determine and interpret a 95% confidence interval for the mean number of bank robberies.
f. Obtain and interpret a 95% confidence interval for the mean travel time from the nearest police station to the bank outlet.
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