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Question: Utilize the following contingency table to answer the questions listed below.
C1 C2
R1 51 207
R2 146 185
R3 240 157
a. State the relevant null and alternative hypotheses.
b. Calculate the expected values for each of the cells.
c. Compute the chi-square test statistic for the hypothesis test.
d. Determine the appropriate critical value and reach a decision for the hypothesis test. Use a significance level of 0.05.
e. Obtain the p-value for this hypothesis test.
a random sample of 21 ncaa division i mens basketball games during the 2009-2010 season had an average attendance of
(b) of Exercise 25 to calculate -2 · ln λ and test the null hypothesis = = = at the 0.05 level of signifi- cance. Explain why the number of degrees of freedom for this approximate chi-square test is 3.
Heights of men on a baseball team have a bell-shaped distribution with a mean of 181 cm181 cm and a standard deviation of 8 cm8 cm. Using the empirical rule, what is the approximate percentage of the men between the following values?
First explain what the Gini coefficient is and what hypothetical Gini values of 0 and 1 mean. Sort the data by the Gini coefficient in 2000 and look at the list of countries.
find the 50th percentile median the 25th percentile first quartile the 75th percentile third quartile and the 90th
Do not forget to test for any applicable difference in means (Tukey implies).
(a) Provide a written description of the complement event of (S OR P). (b) What is the probability of complement event of (S OR P)?
The statistics showed that students studied an average of 20 hours per week with a standard deviation of 10 hours. What is the probability that a sample mean would exceed 20 hours per week?
A study found that women of normal weight missed an average of 3.4 days of work due to illness during the preceding year, compared to an average of 5.2 days for women who were considered overweight.- Determine and interpret the p-value for the test..
a past issue of the journal news hamilton ohio reported on a study conducted by the kaiser family foundation regarding
explain the parts of a decision tree.what are some benefits of using decision trees?in what ways can decision trees be
A plus four 95% confidence interval for the difference between the two population proportions of wrist injuries is: A. 0.2909 ± 0.1674. B. 0.2909 ± 0.1069. C. 0.2909 ± 0.0907. D. 0.2909 ± 0.1275
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