Explain the Merits and Demerits of CDR (Crude Death Rate).
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A: Empirical rule: The empirical rule states that it was for a normal distribution data. It falls…
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A: A quantitative forecast technique is used to predict future results based on past available data.…
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A: Describe what is meant by statistical significance?
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A: Given that Weathering time ( months )
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A: Calculating crude death rate is more appropriate when we are considering the population of interest…
Q: Describe about LSD TEST?
A: Post hoc tests: The tests which are used to analyze the differences for all possible pairs of group…
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A: The expected value of an accountant's profit and loss analysis is 0. This means he will not either…
Q: Do you think that a margin of error greater than 5% is appropriate when conducting a research?
A: Margin of error helps to understand the confidence level of the research or survey. It is calculated…
Q: Why is it so important to first analyze measurement models and then structural models?
A: Why analyze measurement models before structural models ?
Q: Give a long introduction for research misconducts.
A: We have to give a introduction of research misconduct.
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A: To find the coefficient of determination (R-squared), we use the formula:Let's say, the sum of…
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Q: What are the Average rates and secant line?
A: Assume we have a function f(x) The Average Rate of Change of function f(x) on the interval [a, b] is…
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A: There are two methods of standardisation commonly used in epidemiological studies, and these are…
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Q: What might an exposure ratio threshold look like?
A: The exposed rate is defined as the rate at which individuals in the case group are exposed to a risk…
Q: Explain how inter-rater reliability is established.
A: The test-retest method of reliability is used to check the consistency of a test. This gives the…
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Q: If age were normally distributed, approximately what percentage of the sample would be older than 60…
A: 1. From the previous problem, the mean of the variable 'age' is 55.1 and SD is 5.3. Given that age…
Q: Why is it called min maxing?
A: Game theory is a branch of mathematics or statistics and it is the study of mathematical models of…
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Q: What are the measures of variation and what is the Imperial rule
A: Different measure of variation 1. Range It takes the difference between the maximum of the data and…
Q: How might measurement and design errors affect respondent errors?
A: Design errors can lead to non response errors as the respondent is not sure how to answer a question…
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A: (a) Use EXCEL Procedure to obtain values of mean, median and mode. Follow the instruction to…
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A: The objective of this question is to understand the unit of analysis required for the research…
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Q: Construct your own problem involving related rates.
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Q: What is the predicted suicide rate per 100000 people ?
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Q: Describe Ethnography Design and when to use this qualitative research method?
A: QR is used for generating new ideas for research.
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A: A hypothesis is a statistical method through which an assumption made on some evidence can be proved…
Q: Explain cumulative error?
A: Introduction Statistics is a discipline which involves collection of the data, organizing and…
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A: Correlation: There is a relationship between two variables which are represented in the scatter…
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Q: Explain what is meant by “Base Rate Neglect” and give an illustrative example.
A: Solution : The base rate fallacy, also called base rate neglect or base rate bias, is a fallacy. If…
Q: Can statistical concepts help in daily life?
A: Statistical concepts are used to describe the features or behaviors of the data. Statistical…
Q: True or False? Calculation of the standardized mortality ratio is an example of the direct method of…
A: Direct Method and Indirect Method: Direct and Indirect methods are the two types of major…
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A: Given : A company yearly sales data is given.
Q: assume that a prior surgery suggests about 33%
A: formula for sample size is
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- Explain the preparation and validation of instruments in research.According to the CDC, cholesterol levels can be reduced by following a healthy diet, getting regular exercise, and reducing the amount of alcohol consumed on a weekly basis. One method of monitoring overall cholesterol levels is to calculate your cholesterol ratio (LDL/HDL), in general a cholesterol ratio between 3.5 and 5.0 is considered to be healthy for most adults. Suppose you are a clinical researcher testing the effects of these lifestyle changes on patient cholesterol levels. In order to determine if following these guidelines helps to reduce overall cholesterol, a total of 18 participants (N = 18) with moderate to high cholesterol ratios (i.e., 3.91 to > 5.0) were recruited for a healthy lifestyle study and their cholesterol ratio was calculated three times over a six week period: Week 0 (baseline), Week 3, and Week 6. Using the variables "Week 0", "Week 3", and "Week 6" in the data set, conduct a One-Way, Within Subjects (AKA Repeated Measures) ANOVA, at α = 0.05, to see…If the duration of a disease is long and the incidence of the disease is low, the prevalence rate of that disease will be similar to the incidence rate of that disease. True False