DO THE CHI SQUARED TEST

Q: how do i get the standard error

A: Standard error = standard deviation/√n  n = number of observations Standard deviation =…

Q: Assume that you have invited back to your high school to be a guest teacher for a day. You task is…

A: Introduction Hypothesis is an assumption that is being tested.

Q: For the purposes of constructing modified​ boxplots, outliers are defined as data values that are…

A: Solution:

Q: How does the size of the cross-tabulation table impact the chi-square value.

A: Introduction: The chi-squared data is often expressed in a cross-tabulation, where each row…

Q: Scores on a test have a mean of 86 and a standard deviation of 13. Jerrica has a score of 94.…

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Q: What is the SRS size?

A: Given that Standard deviation =6.4 As solved part(a)  The standard deviation of sample mean =0.4667…

Q: Give give 5 examples of type I error inside your home.

A: Type 1 error  Probability of rejecting the null hypothesis when it is true

Q: What are the restrictions of use for a Chi-Square analisys?

A: The chi-square is very sensitive to sample size. As the sample size increases, absolute differences…

Q: Einar Óli measured the area of scallops in two places in Breiðafjörður and used a t-test to find out…

A: There are two types errors occur in hypothesis testing. Here it is given that type II error has…

Q: classify each histogram using the appropriate descriptions, identify all of the descriptions that…

A: Part a: In the first histogram representing test scores the data has a peak in the right side and…

Q: A Type I error means

A: There are two types of error Type I error Type II error

Q: how to develop histogram

A: Histogram represents the data in graphical format. Histogram is one of the popularly used graphs for…

Q: Write down the STANDARD ERROR OF ESTIMATE (COMPUTATION FORMULA)?

A: Introduction The standard error (SE) shows how diff. the pop. mean is likely from the sample mean.

Q: Describe the "carry effect"

A: To get better results whether the carry over test is significant or the treatment given is…

Q: which one of the values contributes most to the chi square score?

A: (c) To determine which value contributes most to the chi-squared score, we can calculate the…

Q: Explain about why z Test Is Appropriate.

A: The z test is basically a statistical test for testing whether is there any difference between…

Q: increase the size of the treatment affect to the zscore

A: z-score is defined as  Z=x-μσWhere Z=standard scorex=sample observationμ=is meanσ=standard…

Q: Find out some applications of chain index numbers.

A: Given data :  Find out some applications of chain index numbers.

Q: Find the value of the x² test statistic

A: Based on the observed and expected values and expected values,the squared distances can be computed…

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…

Q: What is the Sum of Squares Formulas for Population?

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Q: an example of the errors that can occ

A: For almost any experimental study where statistical procedures are applied to a collection of…

Q: provide the NORMAL CURVE of the solution

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Q: what are IQR?

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Q: A researcher notes that there seems to be a difference in the prevalence of high cholesterol among…

A: The null and the alternative hypotheses used for testing are, H0: Diet and smoking status are…

Q: Define most powerful test.

A: Define most powerful test

Q: If SSR = 54 and SST = 72, compute the coefficient of determination, r, and interpret its meaning. *=…

A: Given that, SSR=54,SST=72 The formula for calculating the coefficient of determination is,…

Q: List one general strength of using nonparametric tests?

A: Nonparametric tests are used when there is no type of distribution given and a relationship or…

Q: DEFINE Autocorrelation coefficient

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Q: Explain the purpose of the chi-square test

A: Chi square:   The Chi-Square statistic is used for testing relationships between categorical…

Q: what is type 2 error

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Q: A statistics professor for STAT 250 wants to investigate how long it takes students to complete Exam…

A: Given: Sample Mean Std.dev 26 43.93 7.14

Q: What does an F test show?

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Q: Explain the Chi – Square test and when it is appropriate.

A: In simple words, You can say Chi-square test is a way to make a decision that something is random or…