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A: Skewness= -0.9779Kurtosis=2.2552α=0.05n=30
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Q: P(A)=0.71 P(G)=0,57 P(BUA)=0.85 P(BIA)= ニ PaB)
A: aaa
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A: ∑XY=37832∑X2=14964∑X=632∑Y=1650n=30
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A: *Answer:
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- State the conditions for applying the Chi-square test. What cautions are to be taken in using this test?- What is the main advantage of Newton's interpolation over Lagrange's interpolation?We want to assess the relationship between class rank and how many minutes a person spends on social media. We randomly select 5 students from UMD and have them report their class rank and number of minutes per week they spend on social media. We get the following data. Because class rank is ordinal data, we want to compute Spearman's rho. Please compute the numerator for Spearman's rho and use 4 decimal places for all computations and final answer. (the numerator is referring to the numerator of the fraction, not including the 1- part) Minutes on Social Class Rank Media per Week 100 1,302 500 25 250 10 600 50 200
- Why is chi squared being found for 1-alpha and not 1-alpha/2From the Pearson r coefficient -0.63 compute for the coefficient of determination then interpret.In this question, the real numbers in your answers should be given with three significant digits of accuracy after the decimal point. The public health authorities of a small town have divided the population into three categories: covid- negative, covid-positive, and hospitalised. After performing regular, extensive tests, they have observed that in each successive week: Among those who are negative, 95% remain so, 4% become positive, and 1% need to be hospitalised. • Among those who are positive, 75% recover and become negative, 20% stay positive, and 5% need to be hospitalised. Among those who are hospitalised, 60% recover and become negative, 30% are released from hospital but remain positive, and 10% remain hospitalised. (a) After representing the population in a given week as a column vector v = [n; p; h], where n, P, and h represent the number of people in the population who are negative, positive, and hospitalised respectively, write down a matrix M for which [n', p', h'] = M[n;…
- The Office of the University Registrar of Seoul University would like to know if the degree programs in College of Science and Math are equally preferred by students. Furthermore, the office would like to know if such degree programs are related to the gender of the students. The test claim that the proportions of the students enrolled are equal in each degree program at alpha=0.05 Using the data on the number of currently enrolled students in each gender (M of F) in each of the four degree programs, find the: a. Table showing the observed and expected values b. Chi-square critical Value c. Chi-square test statistic d. Accept or Reject the null hypothesis?If the coefficient of determination between two independent variables is 0.33, what is the VIF? VIF= (Round to three decimal places as needed.)Suppose P(A) = 0.59, P(B) = 0.28, and P(An B)= 0.01. What is P(Aª|B)? [Give your numeric response to at least 3 decimal places. Give only the number, and no extra characters or symbols.]
- Suppose Ho: p = 1/3 and Ha: p not equal to 1/3. You reject Ho. What type of error could you have made here? Either a Type 1 error or a Type 2 error, they are equally likely. Туре 1 error You could not have made any errors with your conclusion based on your data. Туре 2 errorFor the chi-square test of independence, Provide a hypothetical formulation of test of independence.