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Chapter 1: Problem 14

Movies A sample of students were questioned to determine how much they would be willing to pay to see a movie in a theater that served dinner at the seats. The male students responded (in dollars): \(10,15,15,25\), and \(12 .\) The female students responded: 8,30, 15, and \(15 .\) Write these data as they might appear in (a) stacked format with codes and (b) unstacked format.

Short Answer

Expert verified
The stacked data in coded format would be {1: 10,15,15,25,12} for males and {2: 8,30,15,15} for females. The unstacked data would be {Male: 10,15,15,25,12} where the Female column would appear as {Female: 8,30,15,15, N/A}.

Step by step solution

01

Stacked Format with Codes

In a stacked format with codes, one has a single column to represent the observation and another column to represent the code (male or female in this case). The code usually replaces group names. Let's assume '1' denotes Males and '2' denotes Females. So, it would look something like this: \nColumn1(Gender Code):\n1,1,1,1,1,2,2,2,2 \nColumn2 (Price):\n10,15,15,25,12,8,30,15,15
02

Unstacked Format

The unstacked format has separate columns for each group. The structure takes into account the maximum number of observations across all groups. Missing values are filled with 'N/A' or some other designated code to represent missing values. Our data would appear like: \nMale Column :10,15,15,25,12\nFemale Column: 8,30,15,15, N/A

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