Mindtap Psychology, 1 Term (6 Months) Printed Access Card For Gravetter/wallnau's Statistics For The Behavioral Sciences, 10th
10th Edition
ISBN: 9781305647329
Author: Frederick J Gravetter, Larry B. Wallnau
Publisher: Cengage Learning
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Chapter 17, Problem 9P
The color red is often associated with anger and male dominance. Based on this observation, Hil1 and Barton (2005) monitored the outcome of four combat sports (boxing, tae kwan do, Greco-Roman wrestling, and freestyle wrestling), during the 2004 Olympic games and found that participants wearing red outfit won significantly more often than those wearing blue.
a. In 50 wrestling matches involving red versus blue suppose that the red outfit won 31 times and lost 19 times. Is this result sufficient to conclude that red wins significantly more than would be expected by chance? Test at the .05 level of significance.
b . In 100 matches, suppose red won 62 times and lost
ls this sufficient to conclude that red wins sig nificantly more than would be expected by chance? Again, use a = .05.
c. Note that the winning percentage for red uniforms
in part a is identical to the percentage in part b (31
out of 50 is 62%, and 62 out of 100 is also 62%). Although the two samples have an identical win ning percentage, one is significant and the other is not. Explain why the two samples lead to different conclusions.
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Chapter 17 Solutions
Mindtap Psychology, 1 Term (6 Months) Printed Access Card For Gravetter/wallnau's Statistics For The Behavioral Sciences, 10th
Ch. 17 - l. Parametric tests (such as t or ANOVA) differ...Ch. 17 - The student population at the state college...Ch. 17 - 3.A developmental psychologist would like to deter...Ch. 17 - Data from the Motor Vehicle Department indicate...Ch. 17 - Research has demonstrated that people tend to be...Ch. 17 - Suppose that the researcher fromthe previous...Ch. 17 - A professor in the psychology department would...Ch. 17 - Automobile insurance is much more expensive for...Ch. 17 - The color red is often associated with anger and...Ch. 17 - Prob. 10P
Ch. 17 - Prob. 11PCh. 17 - 12. Many businesses use some type of customer...Ch. 17 - In a classic study, Loftus and Palmer (1974)...Ch. 17 - In a study investigating freshman weight gain, the...Ch. 17 - Research results suggest that IQ scores for boys...Ch. 17 - 16. Gender difference in dream content are wen...Ch. 17 - 17. In a study similar to one conducted by Fallon...Ch. 17 - 18. A recent study indicate that people tend to...Ch. 17 - 19. Research indicates that people who volunteer...Ch. 17 - Cialdini, Reno, andKallgre,n (11990) examined how...Ch. 17 - Although the phenomenon is not well understood, it...Ch. 17 - In the Preview for this chapter we presented a...Ch. 17 - Research has demonstrated strong gender...
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