What will the chi-square value be when there is almost no difference between what is observed and what is expected?

Q: Use Simpson's rule with in two decimal places.

A:

Q: If you make α too small (e.g., α = 0.0000000001), what kind of error are you more likely to make?…

A: Assuming, Initially  α = 0.05

Q: The measurement error on the first variable ("male") is not a classical measurement error. Explain…

A: question:

Q: What is formula for z score?

A: A z-score is a score which is computed to find out the number of standard deviations a value is away…

Q: What is the mean squared error (MSE)?

A:

Q: what is the chi-square test and how is it used?

A: Chi square test: A chi-square test is a statistical test used to evaluate found effects with…

Q: whats the value of alpha?

A: In question their is no such variable alpha . Question is incomplete.

Q: A tire company claims that their new tires will have an average life of 149000 miles. A consumer…

A: The null and alternative hypothesis will be, The test statistic can be calculated as: The p-value…

Q: Find the z-score that separates the largest 5% of scores from the rest.  Round your result to 3…

A: Obtain the z-score that separates the largest 5% of scores from the rest. The z-score that separates…

Q: Explain how the Mean Value Theorem is a special case of Taylor’s Theorem.

A: To Determine: explain how the Mean Value Theorem is a special case of Taylor's Theorem. Explanation:…

Q: the margine of error is always greater than or equal to the standard error?

A: In estimating from a random sample, the difference between an estimator and a parameter can be…

Q: what is the root mean square error ?

A: In question, We'll discuss about root mean square error.

Q: For the chi-square test of independence, how is the p-value evaluated?

A:

Q: DO THE CHI SQUARED TEST

A:

Q: Can we safely assume with 90% confidence that opinion regarding the choice of future technology…

A: Given Information:   news media coal miner Environmentalist Local Total Coal 21 42 11 25 99…

Q: As the alpha level gets lower, which error rate also gets lower? Type I Type II

A: We know that, Type I error is – In this we reject the null hypothesis which is actually true called…

Q: What is the average speed in the attached image?

A: From the given graph  Base1= 200 Base 2 = 100.  Height = 40  Area of trapezium = 1/2 (base1+base2)…

Q: What is e?

A: Given : To discuss what is e?

Q: What is the standard error of the predicted mean glia-neuron ratio for all species with ln(brain…

A: Given GliaNeuronratio 1.65 1.2 1.21 0.98 1.22 0.97 1.02 0.84 1.09 1.15 1.2…

Q: What do you mean by AIC Lag Length Estimator?

A:

Q: What does MSse represents in Fse RATIO (SIMPLE EFFECT)?

A:

Q: what  is meant  by  significance level .  how is this related to alpha

A: Significance level -            The significance level is denoted by in alpha (α) .it is a measure…

Q: Before using these mean squares what does we must calculate?

A: Mean squares is nothing but the sum of the squares of the mean of the group   divided by the degrees…

Q: Explain the purpose of the chi-square test

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

Q: Find the standardized test statistic. z= (Round to two decimal places as needed.

A:

Q: What do you need to make sure a chi-square test is valid in a 2x2 table? Are the rules different…

A: Suppose we have two attributes(i.e some specific numerical characteristics) A (with c number of…

Q: calculate Pearson's Index of Skewness

A: Pearson index of skewness is a method to calculate the skewness of the data. Skewness is the…

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…

Q: What are the two frequencies measured during the Chi-Square Goodness of Fit test and what is the…

A: The test statistic for chi-square goodness of fit is,

Q: Suppose a logistic model has been fitted to a data set and the ROC curve has been plotted. If the…

A:

Q: Can values of a chi-square variable be negative yes or no?

A: Can values of a chi-square variable be negative yes or no?

Q: The data for a chi-square test consist of numerical scores non-numerical categories ranks…

A: The data for a chi-square test consist of frequencies. It is commonly used for testing relationships…

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

A:

Q: What is the chi-squared value for the test?

A: Our aim is to write the chi square test value from the given output.

Q: A chi-square test of independence is the most appropriate to use when the characteristics were are…

A: Given that  A Chi-square test of independence is the most appropriate to use when the…

Q: KJZZ, a local jazz station, has hired you as a research consultant to determine which demographic…

A: Hypothesis: The two categories of interest are the “Opinion of Jazz” and “Gender”. The researcher is…

Q: For what types of data do we use chi-square tests?

A: Given : Chi-square tests

Q: When to use a chi- square test?

A: The chi-square test can be used to test the in the following scenarios: To test the Goodness of fit…

Q: What distinguishes interpolation from other form of approximation?

A: Interpolation is the process of estimating the value of function for any intermediate value on an…

Q: Assıme an equal mean number of visitors per day as a null hypothesis To test for the goodness of fit…

A: Test is that whether an equal mean number of visitors per day. Sample size is given by n = 210

Q: Calculate the magnitude of the error in approximating 11 with its projection onto Round the error to…

A: Let v=4118t and u=912t We have to calculate the magnitude of the error in approximating  v=4118t…

Q: determine if the frequency of deficiencies of variable (significant medications) are statistically…

A: Solution The p value of the test = 0.033 which is less than 0.05 ,so the null hypothesis is…

Q: a)Explain the factors that affecting the differences of result between experimental value and…

A: a) Actually, only pendulum and tuning forks have a single natural frequency. But in practical life,…

Q: For what purpose is a chi-square homogeneity test used?

A:

Q: Úse diFferentiais to approximato VTG.a (ose Fa) = FVx)

A:

Q: Which of the following is a type I error?

A: Here use given claim to identify type 1 and type 2 error

Q: Why are standard z values so important?

A: The z-score is standard score.

Q: Find Newton's standard deviation for damage claims paid on collision insurance (in $).

A: Question 15: The random variable x is defined as the damage claims paid by Newton Automobile…

Q: A researcher wants to test the association between 4 stress levels and 8 choices of favorite color…

A: According to the provided data, the researcher wants to test the association between 4 stress levels…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.