Answered: In February 2013, Sports Illustrated…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 6E

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Related questions

Question

In February 2013, Sports Illustrated published a controversial article stating that football corrupts Christian values. Suppose we wanted to study player’s opinions on the article and listed NFL players from lowest income to highest income. A player is selected randomly out of first 20 names in the list and every 20th name from that point forward is also selected to be sampled. Which of the following sampling plans was used in this survey?

Group of answer choices

Stratified

Cluster

Simple random

Systematic

A study wants to compare the effectiveness of a tablet app to flash cards with regard to a toddler’s letter recognition at the end of a two month trial period. A group of 100 toddlers were randomly divided into two groups. One group was given the tablet and app, while the other group used the flash cards for the two months. At the end of the two months the researcher stated that the app group had a higher proportion of letters recognized than the flash card group. The two samples found in this study are which of the following?

Group of answer choices

Two dependent (matched pairs/paired data)

Two independent

Case-control

None of these

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