31. What is the F ratio? (a) None (b) 3.15 (c)1.414 (d) 7.92 (e) 0.45
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Q: can ratios be scaled up or down?
A: We can answer it properly with the help of suitable example as below
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Q: what is ratio?
A: In mathematics, a ratio indicates how many times one number contains another
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Q: 3. What is the difference between the altitude rule and the leg rule?
A: Difference between leg rule and altitude rule.
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Q: What is F ratio?
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Q: Choose the correct answer below. O Ordinal O Interval O Ratio Nominal
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Q: What is the measurement of
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Q: What is the degree of freedom for the denominator of the simple-effect Fse ratio?
A: The degrees of freedom for the F-statistic is,
Q: All other ors size increases, the margin of error O decreases
A: The formula for margin of error is given by:
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Q: a) What is the scale factor of AABC to APOR? b) Calculate the value of x.
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A: True
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- What is meant by the sample space of an experiment?Use an ANOVA with α = .05 to determine whether there are any significant differences among the three treatment means.What test would be best to use if there was a statistical difference between brands in an experiment? Would it be a one way ANOVA since that is used to see if there are any differences within a group?
- A researcher was interested in whether there were differences in the level of activity in children who had been diagnosed with ADHA depending on whether they had received no treatment, were on Ritalin, or were in a behavior management program. He recruited 90 children with ADHD to participate, and randomly assigned each child to one of the three groups. The number of classroom disturbances during a 1 hour period was measured for each child. Which statistical test would be best to determine if there is a significant difference between groups? one-sample t-test dependent samples t-test independent samples t-test ANOVAA researcher was interested in whether there were differences in the level of activity in children who had been diagnosed with ADHA depending on whether they had received no treatment, were on Ritalin, or were in a behavior management program. He recruited 90 children with ADHD to participate, and randomly assigned each child to one of the three groups. The number of classroom disturbances during a 1 hour period was measured for each child. Which statistical test would be best to determine if there is a significant difference between groups? one-sample t-test dependent samples t-test ANOVAAccording to the U.S. Transportation Security Administration (TSA), 2% of the 771,556,886 travelers who utilized 440 federalized airports in 2017 waited more than 20 minutes in the TSA security line. The File TSAWaitTimes contains waiting Times in TSA security lines at a major U.S. airport for a recent random sample 10,531 travelers. Use these Data to test the hypothesis that the proportion of travelers waiting more than 20 minutes in TSA security lines at this airport is the same as the national proportion at α = .05 Data given: Time In Line Mean 11.99496 Median 11.97536 Standard Deviation 3.992043 Confidence Level(95.0%) 0.076253 Provide a 95% confidence interval with interpretation
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