Essentials of Statistics for the Behavioral Sciences
8th Edition
ISBN: 9781133956570
Author: Frederick J Gravetter, Larry B. Wallnau
Publisher: Cengage Learning
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Chapter 10, Problem 21P
When people learn a new task, their performance usually improves when they are tested the next day, but only if they get at least 6 hours of sleep (Stickgold, Whidbee, Schirmer, Patel, &. Hobson, 2000). The following data demonstrate this phenomenon. The participants learned a visual discrimination task on one day, and then were tested on the task the following day. Half of the participants were allowed to have at least 6 hours of sleep and the other half were kept awake all night. Is there a significant difference between the two conditions? Use a two-tailed test with
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Chapter 10 Solutions
Essentials of Statistics for the Behavioral Sciences
Ch. 10.2 - What is the defining characteristic of an...Ch. 10.2 - Prob. 2LCCh. 10.2 - One sample from an independent-measures study has...Ch. 10.2 - One sample from an independent-measures study has...Ch. 10.2 - Prob. 5LCCh. 10.3 - An educational psychologist would like to...Ch. 10.3 - A research report states that there is a...Ch. 10.4 - A researcher is using an independent-measures...Ch. 10.4 - Prob. 2LCCh. 10.4 - When you are using an F-max test to evaluate the...
Ch. 10 - Describe the basic characteristics that define an...Ch. 10 - Describe what is measured by the estimated...Ch. 10 - If other factors are held constant, explain how...Ch. 10 - Describe the homogeneity of variance assumption...Ch. 10 - One sample has SS = 36 and a second sample has SS...Ch. 10 - One sample has SS = 70 and a second sample has SS...Ch. 10 - As noted on page 283, when the two population...Ch. 10 - Two samples are selected from the same population....Ch. 10 - Two separate samples, each with n = 15 individuals...Ch. 10 - Two separate samples, receive different...Ch. 10 - For each of the following, assume that the two...Ch. 10 - For each of the following, calculate the pooled...Ch. 10 - A researcher conducts an independent-measures...Ch. 10 - In a recent study, Piff, Kraus, Ct, Cheng, and...Ch. 10 - Hallam, Price, and Katsarou (2002) investigated...Ch. 10 - It appears that there is some truth to the old...Ch. 10 - Does posting caloric content for menu items affect...Ch. 10 - In 1974, Loftus and Palmer conducted a classic...Ch. 10 - Numerous studies have found that males report...Ch. 10 - Recent research has shown that creative people are...Ch. 10 - When people learn a new task, their performance...Ch. 10 - Recent research has demonstrated that music-based...Ch. 10 - Downs and Abwender (2002) evaluated soccer players...Ch. 10 - Research has shown that people are more likely to...
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