CHAPTER 10: TWO-SAMPLE TESTS WITH NUMERICAL DATA 1. The t test for the difference between the means of 2 independent populations assumes that the respective a) sample sizes are equal. b) sample variances are equal. c) populations are approximately normal. d) all of the above ANSWER: c TYPE: MC DIFFICULTY: Moderate KEYWORDS: pooled-variance t test‚ assumption 2. The t test for the mean difference between 2 related populations
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Diary Of a Wimpy Kid‚ The Ugly Truth by: Jeff Kinney). At first ‚researcher for selecting two homogeneous groups of participants‚ in terms of English proficiency‚ consider their final schooling English exam‚ as the proficiency test and select those students ‚ who their scores are higher than the others. Then divided the participants randomly in two groups. By this way‚ two classes of participant will be made and English chunks are
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Purchases of management students in Jabalpur City. Ecological affect has a greater impact on their attitude formation than does Ecological Knowledge. To check if this is also true for these consumers‚ management students (n=41) were surveyed to measure their ecological affect‚ ecological knowledge and attitudes towards green purchases. Students with high ecological affect showed a statistically significant difference on their attitudes towards green purchases score than the students with low ecological
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ABSTRACT Time management is a crucial thing that needed by individual especially for students. It can affect their academic achievement. Therefore‚ the objective of the study is to investigate impact of time management towards student achievement. One hundred questions have been distributed to UUM students. Based on the survey there is a significant impact of time management towards academic achievement. While‚ there is no significant impact of academic achievement between genders. The last‚ there
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What hypothesis testing procedure would you use in the following situations? a) A test classifies applicants as accepted or rejected. On the basis of data on 200 applicants‚ we test the hypothesis that ad placement success is not related to gender. H0: ad placement success is not related to gender. (Indep) Ha: ad placement success is related to gender. (Dep) 2-independent sample Chi-square test b) A company manufacturers and markets automobiles in two different countries. We
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Cognitive Experimental Research Report. The Effect of Word and Picture Stimuli on the Number of Items Recalled. Abstract Based on Standing’s (1973) examination of recognition memory and the recall of words and pictures which supported the picture superiority effect‚ this experiment measured the number of items recalled by participants that had either been given word
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to –0.1 or 0.1 to 0.3 Weak –0.1 to 0.1 None or very weak One sample t-test A study was conducted to investigate whether the hours of work has changed for Australian men since 2001. In a sample of 116 Australian male adults‚ on average the men worked 39.6 hours per week (s = 4.5). This is higher than the mean of 38.6 hours per week recorded for Australian men in 2001 and a t-test shows that the difference is significant‚ t (115) = 2.45‚ p = 0.016. The 95% confidence interval indicates that since
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School of Business and Economics RESIT EXAM Course Code Date Time Location : International Marketing Management : EBC2009 : Wednesday‚ April 11‚ 2012 : 13:00-16:00 : MECC Westhal VERSION A Electronic communications devices are not allowed – put them in your bag (under your table) or on the floor‚ not in your pocket! (Otherwise this will be reported as possible fraud). !!Any writing after the official end of the examination will be considered as possible fraud and reported
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The investigation into the effect of social facilitation on the performance level within the Stroop effect. Abstract The relationship between social facilitation (first discovered by Triplett in 1898) and the issue of interference within the Stroop effect were investigated. Fifty participants were recruited and took part in a repeated measures design. Participants were given a list of congruent and incongruent words in single and paired situations. The overall findings of this study suggest
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University of Cincinnati students. We want to help students minimize the cost of textbooks by helping them compare different options. We also want to find out what are the different options of selling the book afterwards. Our goal is to help students stay cost efficient but also find out convenient and easy methods of attaining the book as well as getting rid of it afterwards. From focus group discussion and interviews‚ so far‚ we have found out that the majority of students prefers to buy them online
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