What is the chi-square test-statistic for this datas (2 decimals)

Q: How do i find the p-value without using excel for a two tailed test? Z-score known.

A: Here p-value from z score is possible with z score Table .

Q: What are four main functions of statistics?

A: Find: The four main functions of statistics.

Q: Differentiate Mean from Variance. What is their similarities and differences? (Essay form)

A: Here we need to differentiate mean from variance.

Q: Describe some of the reasons that group means might be different from each other in an analysis of…

A: Given:-             I)    Some of the reasons that group means might be different from each other in…

Q: How do I interpret the mean 12.5 and the median 12.5 and explain how the mean and the median each…

A: Given: Mean=12.5Median=12.5

Q: What do you mean by the differences estimator and how it is calculated?

A:

Q: How do you find the Ouartiles and the IQR?

A: Quartiles are values that divide the entire set of data into quarters. The different types of…

Q: Statisticians are mostly interested in learning about the - population, sample, averages, or…

A: It is given that the statement about to the statistics terminology. Here, need to find out the…

Q: single term that best describes statistics and why?

A: A statistic is the measure of an attribute computed from a sample. The statistics calculated from…

Q: What is the z score for test scores of 70 and 90?  TEST SCORES: 50,60,61,63,66,67,73,82,89,92

A: From the provided information, The test scores are 50, 60, 61, 63, 66, 67, 73, 82, 89, 92

Q: You are interested in whether level of education influences a person's exposure to the media. You…

A: Introduction: It is required to find the mean, median, mode for the independent variable.

Q: A quantitative data set has 22 observations  when arranged in descending order what is the value of…

A: The quantitative data set has 22 observations.

Q: How do I interpret the 6 charcteristics of data when I am only given the mean, median, mode, and…

A: According to the provided information, mean, median, mode, and standard deviation are given.

Q: What is percentage of variance explained (r2)? What info does it tell you about the independent…

A: What is percentage of variance explained (r2)=Square of correlation coefficient   What info does it…

Q: Explain how the Chi-square test statistics is calculated and what it tells us about the observed…

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Q: Describe about the Converting a Raw Score to z.

A:

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: Explain the logic behind the equations for the mean and standard deviation for grouped data,…

A: MeanThe formula for mean is the weighted average of the midpoints, where the weights are the…

Q: nalyse the information in a research?

A: Mean SD I am concerned about contracting Covid-19 when I travel 4.527 0.7371 Covid-19 reduces…

Q: What are some common methods used in data analysis and statistics, and how are they used to gain…

A: It is given that the common methods used for data analysis and statistics used for gaining the…

Q: How do you compute the range, interquartile range and standard deviation

A: formula's of Range , Interquartile range and standard deviation.

Q: What are the three value to indicate variability of a data set How do you determine whether it is…

A: Variability :  It refers to the difference being shown by the data points within a data set, as…

Q: What is the difference? Please lay out the rules.

A: Hypothesis is the act in statistics in which analyst check the assumptions regarding the population…

Q: Describe one-tailed p-values.

A: The choice of a specific value of the level of significance is completely subjective and hence the…

Q: solve the range and median only of the two tables

A: RANGE calculated as the difference between the lower limit of the minimum interval and upper limit…

Q: What would be two issues in making a direct comparison on the statistics of each variable? Using…

A: Introduction - Minitab - It is an application software for studying statistical tools and applying…

Q: why estimation is important in statistics?

A: Estimation is one of the two branches of inferential statistics.

Q: How do I write a function in R Studio to compute mean, variance, and standard deviation for a pmf?

A: Let us take a small dataset, we will find the mean, standard deviation and variance in RStudio a…

Q: Using excel the median is 16.70 but when I calculate it manually it comes to 13.9. Why is excel…

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Q: What are four main functions of statistics?

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Q: when do we use the statistical treatments

A: I will discuss when we have to use statistical treatments

Q: The second sheet of the spreadsheet linked above contains the scores of 50 students on 4 different…

A: Weighted Mean: For a set of n observations, x1, x2, ... , xn with weights w1, w2, … , wn, weighted…

Q: how to compute a z score with table

A:

Q: How do you know when to use each type of Chi-square test (Goodness-of-fit, Homogeneity, and…

A: We have to find which type of chi square test used in (Goodness of fit, Homogeneity,…

Q: explain what is measured by the sign of a z -score and what is measured by its numerical

A: here use basic of standard normal random variable z -score

Q: Explain about z Test for a Population Mean.

A:

Q: what is the standard error (usually standard error of the mean)?

A: Standard error: The standard error of the statistic is defined as the standard deviation of its…

Q: how do i calculate a z score or find the X-Value and determine if a score is usual or unusual

A: A z-score measures exactly how many standard deviations above or below the mean a data point is.