Lesson 1 John and Mario owners for the Mi Casa Front Porch r

Lesson 1

John and Mario, owners for the Mi Casa Front Porch restaurant logged a total of 60,000 customers between their three restaurants in the previous calendar year. Of the total customers served, 38% were from the downtown location, 32% was from the North Scottsdale location and 30% was from the Glendale Westgate location. Mario was interested in how many repeat customers the restaurants had so he worked with his staff to sample 1,000 customers from the three locations. The sample highlighted that 20% had come to his restaurant three or more times, 36% were first time customers and 44% had visited twice.

Based on the scenario above, describe,

1. population of interest

2. the sample

3. an example of both a parameter and a statistic used in the scenario

Solution

1.

Since Mario was interested in how many repeat customers the restaurants had, so the popualtion of interest is all the customers of their restaurants.

2.

The sample is 1000 cutomers selected from the three locations.

3.

Parameter : Population proportion of cutomers had come to his restaurant three or more times.

Statistics:

Sample proprotions of the cutomers had come to his restaurant three or more times.