1. Analyze the following statistical study. Highline’s Bistro in the student uni

Question

1.     Analyze the following statistical study.

Highline’s Bistro in the student union is interested in helping students eat more healthfully. They decide to track the following information about each student who makes a purchase:

·       The time of day

·       The type of food item

(Options are: drink, snack, or meal)

·       A rating (by employees) of the “healthiness” of the food items

(Options are from 1 – little nutrition to 4 – very nutritious)

·       The location of the food item in the display case

(Options are: one of High, middle, low AND one of left, center, or right)

·       The amount a person spends

The employees chose one day, and one employee stayed behind the counter to record information about every third customer. A week later, they moved the healthiest items to the right side of the display case – closest to the cash register. On the same day of the week, the employees again recorded information about every third customer.

a)     Describe the population of interest.

b)     Describe the individuals in this study. (Remember, “individuals” can be people or objects.)

c)     List one of the variables in this study.

d)     Is this study observational or experimental? How did you decide?

e)     Which data collection technique was used?

f)      Which sampling method was used?

Highline’s Bistro in the student union is interested in helping students eat more healthfully. They decide to track the following information about each student who makes a purchase:

·       The time of day

·       The type of food item

(Options are: drink, snack, or meal)

·       A rating (by employees) of the “healthiness” of the food items

(Options are from 1 – little nutrition to 4 – very nutritious)

·       The location of the food item in the display case

(Options are: one of High, middle, low AND one of left, center, or right)

·       The amount a person spends

The employees chose one day, and one employee stayed behind the counter to record information about every third customer. A week later, they moved the healthiest items to the right side of the display case – closest to the cash register. On the same day of the week, the employees again recorded information about every third customer.

Explanation / Answer

Part 1

The objective of this study is to analyze what food students are buying and how do they respond to changes in the display location of the food. The target population here is the Student Population who are consuming the food from the restaurant.

Part 2

An individual in a study are the person or object that is being studied. The individuals in this study are :

Part 3

Variables are the characteristics of the individuals. One variable in this study is the type of food item. Other variables can be the amount a person spends, healthiness rating of the food item.

Part 4

The study that has been undertaken here is the Observational Study. In an Observational Study, the investigators observes subjects and measures variables without assigning treatments to the subjects. in this study also no treatment has been meted out to the observation population, their behavior towards the food item are been observed randomly.

Part 5

The common data collection techniques are:

Over here, the employed method is Observational.

Part 6:

The sampling method employed here is Random Sampling. Each member of the population has an equal and known chance of being selected.

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