What classification of data is a ranked order scale? ordinal interval nominal
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What classification of data is a ranked order scale?
ordinal
interval
nominal
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- The following statements are either true or false. Indicate true or false and justify your answer briefly. An unbiased estimator is said to be consistent if the difference between the estimator and the population parameter grows smaller as the sample size grows larger. An unbiased estimator is a sample statistic whose expected value equals the population parameter. Knowing that an estimator is unbiased neither assures us that its expected value equals the population parameter, nor does it tell us how close the estimator is to the population parameter. A specific confidence interval obtained from sample data will always correctly estimate the population parameter.The gels diagrammed below show the results of amplifying two VNTR loci from: 2 hairs found at a crime scene (hair 1 and hair 2), a crime victim, and possible suspects. Determine whom hair 1 could have belonged to based on the results in the gel below. If the hair could belong to more than one individual, then choose all of the possibilities. If the hair could not belong to any of these, choose "none of these". VNTR Locus 1 Hair 1 Hair 2 Victim Suspect 1 Suspect 2 Suspect 3 Suspect4 VNTR Locus 2 Hair 1 Hair 2 Suspect 1 Suspect 2 Suspect 3 Suspect 4 Victim Select one or more: O Victim O Suspect 1 O Suspect 2 O Suspect 3 O Suspect 4 O None of theseWhat drives the most the Shannon-Wiener index? The Evenness or the number of species?
- In general, the ______ variable is purposely changed in an experiment.I am testing the prediction that spiders with colors that match a flower (cryptic coloration) will have greater success hunting bees visiting that flower. I set up two treatments for spiders: those matching their flower and those not matching their flower. I measure how long it takes each of them to catch a bee. What kind of statistical test would be best for testing my prediction? Chi-square ●ANOVA RegressionA correlation coeffiicient of zero means two variables do not vary in a consistent way with each other. True or false?
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- In a controlled experiment, all of the variables are kept the same in order to be consistent. There is only one variable that is changed for these kinds of studies, and it is known as the __________ ___________ (2 words).Choose the Family Systems Theory and 2 other frameworks and conduct additional research on the key concepts promoted by each model.Discuss the benefits of having more than one model for discussing family dynamics.Upon comparing the mass of Fuji apples grown on two farms in Georgetown, KY--one using organic fertilizer and a neighboring farm using commercial fertilizer, the a research program commissioned by the USDA finds that the mean mass of organically and commercially grown apples are 224.2 g and 224.6 g, respectively. The standard error for both means is 0.015 g. The statistical test obtained by comparing the mass of several thousand apples from each farm (organic: 6,000, commercial: 78,000) produced a p-value of 0.001. What is correct interpretation of the results? The apples from the non-organic apples tend to be heavier than organic apples. There is no discernible difference in the mass of apples grown on both farm; this is supported by the statistically significant P-vale of 0.001. O Apples from the commercial farm were heavier than those from the organic farm, and this difference is statistically significant. O The difference in mass of apples from the two farms is negligible.