Estimate sensitivity, specificity, positive predictive value, negative predictive value and prevalence from data in the 2 x 2 table for an infectious disease and its diagnostic test.

Q: Explain Single Observation Summary of Z-test Summary?

A: Z-test: Z-test is a statistical test used to determine whether two population means are different…

Q: A simple main effect test is appropriate for analyzing which significant result?

A: Simple Effects : is appropriate for analyzing a significant interaction, follow-up tests are…

Q: What is the advantage of removing the variability caused by individual differences in a…

A: A within-subject design is a type of experimental design in which all participants are exposed to…

Q: What is an “average” z-score? Explain your answer?

A: A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of…

Q: What is a T-Test? How is it applied to a Single Population Data Set?

A: Student's t-test was given and first used by W.S. Gosset in 1908. The statistician W.S. Gosset is…

Q: give one disadvantage of using experience sampling and one advantage of using correlational methods…

A: Disadvantage of using experience sampling Despite the strengths and promise of this method, there…

Q: Show the steps needed to justify and use a normal model to describe the percentage of women with…

A: Medical Researcher believe that 11% of women have a certain generic marker.  A survey team will…

Q: What do the MS values represent in an ANOVA?

A: ANOVA is Analysis of Variance.

Q: Use the following visualization to answer questions 5 - 6. We are going to focus on 3 explanatory…

A: The explanatory variables and their possible values for predicting the response variable, which is…

Q: List and describe two of the common types of explanation for statistical relationship (other than…

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Q: Describe the assumptions for ANOVA and explain how they may be diagnosed.

A: Introduction :-  There are some assumptions made to conduct ANOVA. We have to describe them and to…

Q: how do i find quartile 1 in a set of data?

A: First quartile: The first quartile is the middle-most observation or median of the lower half of the…

Q: How to summarise data(scores)with decriptive statistical techniques

A: Descriptive statistics are brief descriptive coefficients that summarize a given data set, which can…

Q: what is a statistical model

A: A statistical model is process of applying statistical analysis to the given data set and it…

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…

Q: Estimate sensitivity, specificity, positive predictive value, negative predictive value and…

A: Solution

Q: The varaibility of a statistic is described by

A: The variability means the spread ness of the data set. The best measure of spread ness is standard…

Q: Suppose the investigators are reluctant to assume that the change in LVM over four years is normally…

A: Solution: Given: The data consists of 10 random children from the Bogalusa Heart Study at baseline…

Q: How can you say that Mode Always Appropriate for Qualitative Data?

A:

Q: Explain the relationship between statistical significance and effect size

A: We know that the Effect size is independent of sample size but Statistical significance is depends…