Back to 1.2 Data, Sampling, and Variation in Data and Sampling

1.2 Exercise 63

Avg difficulty 2.5

Use the following information to answer the next two exercises: A study was done to determine the age, number of times per week, and the duration (amount of time) of resident use of a local park in San Jose. The first house in the neighborhood around the park was selected randomly and then every 8th house in the neighborhood around the park was interviewed.

Airline companies are interested in the consistency of the number of babies on each flight, so that they have adequate safety equipment. Suppose an airline conducts a survey. Over Thanksgiving weekend, it surveys six flights from Boston to Salt Lake City to determine the number of babies on the flights. It determines the amount of safety equipment needed by the result of that study.

  1. Using complete sentences, list three things wrong with the way the survey was conducted.
  2. Using complete sentences, list three ways that you would improve the survey if it were to be repeated.

OpenStax Introductory Statistics 2e, 1.2 Data, Sampling, and Variation in Data and Sampling, exercise 63

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Adapted from Introductory Statistics 2e © 2023 Rice University. Licensed under CC BY 4.0. Source: Introductory Statistics 2e. Imported at revision 50ec917.