Math Homework

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1. In analysis of variance, the term factor refers to: a. Dependent
1. In analysis of variance, the term factor refers to: a. Dependent variable b. Independent (or quasi-independent) variable c. Treatment mean d. Treatment total 2. When comparing more than two treatme… read more
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45. The standard deviation is: (Points : 1) The difference
45. The standard deviation is: (Points : 1) The difference between the 3rd and 1st quartile. The squared deviations from the mean. The difference between the highest and lowest scores. The square root… read more
Chirag
Master's Degree
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31. This is the measurement of dispersion equal to the square
31. This is the measurement of dispersion equal to the square root of the mathematical variance. (Points : 1) Mean Median Standard deviation Range 32. This is used to compare means while controlling f… read more
Chirag
Master's Degree
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36. What is the minimum level of measurement appropriate for
36. What is the minimum level of measurement appropriate for the independent variable in a t-test? Nominal Ordinal Interval Ratio 37. ANOVA assumes which of the following? Random sampling Normal distr… read more
suprabhatai
Bachelor's Degree
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1. A formal statement that there is an absence of relationship
1. A formal statement that there is an absence of relationship between variables when tested by a researcher is called: (Points : 1) Null hypothesis Type I error Type II error Negative interval 2. Biv… read more
Chirag
Master's Degree
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42. A nurse researcher wanted to evaluate blood pressure in
42. A nurse researcher wanted to evaluate blood pressure in a set of patients/research subjects at 1, 3, and 6 months. What test would be most appropriate? Independent t-test ANVOVA RM-ANOVA ANCOVA 43… read more
R.R. Jha
Bachelor's Degree
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26. Causation is synonymous with association. (Points : 1) True False 27.
26. Causation is synonymous with association. (Points : 1) True False 27. The area of the theoretical distribution where the researcher will reject the null hypothesis is called: (Points : 1) +/- 1 st… read more
Sandhya_sharma
Master's Degree
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1. The Central Limit Theorem states: (Points : 1) The
1. The Central Limit Theorem states: (Points : 1) The smaller the standard error of the mean, the closer it is to the population mean. The mean of a sampling distribution of means is equal to the popu… read more
suprabhatai
Bachelor's Degree
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A researcher exposes participants to an online, face-to-face,
A researcher exposes participants to an online, face-to-face, or hybrid class, and then measures their knowledge via a post-test. The researcher believes that post-test scores for those in the face-to… read more
dhouse1940
Retired
Master's Degree
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9) If the paired differences are normal in a test of mean differences,
9) If the paired differences are normal in a test of mean differences, then the distribution used for testing is the A. Student t distribution B. Chi-Square C. F distribution D. normal distribution 10… read more
mlamias
Statistical Consultant
Bachelor's Degree
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1.In the equation Y a + bX, what is Y A)Slope of the
1.In the equation Y' = a + bX, what is Y'? A)Slope of the line B)Y intercept C)Predicted value of Y, given a specific X value D)Value of Y when X=0 2. The multiple coefficient of determination, R2, re… read more
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Teacher
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A Type II error is committed when we reject a null hypothesis
A Type II error is committed when we reject a null hypothesis that is true. A. True B. False 2) If the p-value is less than a in a two-tailed test, the null should be rejected. A. True B. False 3) The… read more
StatisticsExpert
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Doctoral Degree
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A researcher reports an f-ratio with df 2,24 for an independent-measure
A researcher reports an f-ratio with df=2,24 for an independent-measure research study. a. How many treatment conditions were compared in the study b. How many subjects participated in the entire stud… read more
Chirag
Master's Degree
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Please show your work 1. Classify the following as independent or dependent samples: a. The effectiveness of two blood pressure medicines on two groups of patients. b. Measures of gas mileage and spee… read more
Greg
Master's Degree
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1. You scored 3 standard deviations above the mean on a st
1. You scored 3 standard deviations above the mean on a statistics test. Is your score significantly different from the mean? Explain your answer. 2. For a research project, alpha is set at .05. What … read more
Greg
Master's Degree
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1) Consider testing H0 80. Under what conditions should
1) Consider testing H0: µ = 80. Under what conditions should you use the t-distribution to conduct the test? 2) In what ways are the distribution of the z-statistic and t-test statistic alike? How do … read more
Greg
Master's Degree
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Hi Greg, Im taking an elementary statistics class, but just
Hi Greg, I'm taking an elementary statistics class, but just busy with work, I need help answering about 2 homework assignments and 1 quiz each week for the next 3 weeks, could you help with these? Wi… read more
Greg
Master's Degree
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Statistics Question 1 What is an independent sample What
Statistics Question 1 What is an independent sample? What is a related sample? When should researchers use different hypothesis tests for independent and related samples? Is one type of sample prefera… read more
Greg
Master's Degree
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