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A study was conducted of the effects of a special class designed to aid students with verbal skills. Each child was given a verbal skills test twice, both before and after completing a 4-week period in the class. Let Y = score on exam at time 2 - score on exam at time 1. Hence, if the population...
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A researcher conducts an independent measures research study and obtains t= 2.070 with df = 28. a. How many individuals participated in the entire research study? b. Using a two-tailed test with = .05, is there a significant difference between the two treatment conditions?...
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. I have been given 100 new lithium ion batteries that will be used in a new cell phone. The batteries are expected to power the phones for 75 minutes of continuous video recording. The company that is selling the phones wants to know if the battery company was giving them an accurate...
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explain why you would not do posttests if the analysis is comparing only two treaments
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For the prediction of job performance from IQ test scores, r = .51. In the data used to illustrate this correlation, the M and SD of job performance ratings are 3.0252 and .7259. In the data used to illustrate this correlation, the M and SD of job performance ratings are 3.0252 and .7259. The...
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. An experiment was conducted using a pre and post test design to ascertain the effectiveness of cognitive behavior therapy, family therapy, and a control group. The output shows the results of a one way ANOVA which was used to look at the relationship between post test and treatment condition....
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A sample of 12 homes sold last week in St. Paul, Minnesota, is selected. Can we conclude that, as the size of the home (reported below in thousands of square feet) increases, the selling price (reported in $ thousands) also increases? a. compute the coefficient of correlation. b. determine the...
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Hello, I loaded my questions in the attached form.
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I will give you 100$ if you can have this back to me by tonight at 10pm. It is due then. Can we make that happen? There is also one more question that didnt submit earlier. Again, 100$ for you if you can submit by tonight at 10
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Hello, Thanks for the quick reply, but I have to submit this tonight.
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