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 11, Problem 23P
At the Olympic level of competition, even the smallest factors can make the difference between winning and losing. For example, Pelton (1983) has shown that Olympic marksmen shoot much better if they fire between heartbeats, rather than squeezing the trigger during a heartbeat. The small vibration caused by a heartbeat seems to be sufficient to affect the marksman’s aim. The following hypothetical data demonstrate this phenomenon. A sample of n = 8 Olympic marksmen fires a series of rounds while a researcher records heartbeat. For each marksman, a score is recorded for shots fired during heartbeats and for shots fired between heartbeats. Do these data indicate a significant difference? Test with
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A retail chain is interested in determining whether a digital video point-of-purchase (POP) display would stimulate higher sales for a brand advertised compared to the standard cardboard point-of-purchase display. To test this, a one-shot static group design experiment was conducted over a four-week period in 100 different stores. Fifty stores were randomly assigned to the control treatment (standard display) and the other 50 stores were randomly assigned to the experimental treatment (digital display). Compare the sales of the control group (standard POP) to the experimental group (digital POP).
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Chapter 11 Solutions
Essentials of Statistics for the Behavioral Sciences
Ch. 11.2 - For the following data from a repeated-measures...Ch. 11.2 - Prob. 2LCCh. 11.3 - Prob. 1LCCh. 11.3 - A researcher is investigating the effectiveness of...Ch. 11.3 - Prob. 2LCACh. 11.3 - Prob. 3LCACh. 11.4 - Prob. 1LCCh. 11.4 - Prob. 2LCCh. 11.4 - Prob. 3LCCh. 11 - What is the defining characteristic of a...
Ch. 11 - Participants enter a research study with unique...Ch. 11 - Explain the difference between a matched-subjects...Ch. 11 - A researcher conducts an experiment comparing two...Ch. 11 - A sample of n = 9 individuals participates in a...Ch. 11 - Solve the following problems. a. A...Ch. 11 - Prob. 7PCh. 11 - A sample of difference scores from a...Ch. 11 - When you get a surprisingly low price on a product...Ch. 11 - Research has shown that losing even one night's...Ch. 11 - Prob. 11PCh. 11 - Masculine-themed words (such us competitive,...Ch. 11 - Research results indicate that physically...Ch. 11 - Researchers have noted a decline in cognitive...Ch. 11 - The following data are from a repeated-measures...Ch. 11 - A researcher for a cereal company wanted to...Ch. 11 - Research indicates that the color red increases...Ch. 11 - One of the primary advantages of a...Ch. 11 - Problem 18 shows that removing individual...Ch. 11 - A researcher uses a matched-subjects design to...Ch. 11 - Some evidence suggests that you are likely to...Ch. 11 - The teacher from Problem 21 also tried a different...Ch. 11 - At the Olympic level of competition, even the...Ch. 11 - Example 11.1 in this chapter presented a...Ch. 11 - Belsky, Weinraub, Owen, and Kelly (2001) reported...Ch. 11 - Do you view a chocolate bar as delicious or as...Ch. 11 - Prob. 3RE
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