A psychologist conducted a research study designed to compare two different memory strategies. He recruited 100 participants and randomly assigned them to a memory strategy group. Both groups listed to a series of sentences. The “visualization” group was asked to rate the sentences on how easy they were to form images in their minds. The “control” group was asked to rate the sentences on how easily they were pronounced. Participants were then asked a series of questions about the sentences; their scores were the number of questions they answered correctly. a. What type of test should be used to analyze his data? i. Z-test ii. Single-sample t-test iii. Independent-measures t-test iv. Repeated-measures t-test b. What would the hypotheses be?

A psychologist conducted a research study designed to compare two different memory strategies. He recruited 100 participants and randomly assigned them to a memory strategy group. Both groups listed to a series of sentences. The “visualization” group was asked to rate the sentences on how easy they were to form images in their minds. The “control” group was asked to rate the sentences on how easily they were pronounced. Participants were then asked a series of questions about the sentences; their scores were the number of questions they answered correctly. a. What type of test should be used to analyze his data? i. Z-test ii. Single-sample t-test iii. Independent-measures t-test iv. Repeated-measures t-test b. What would the hypotheses be?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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