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Consider the following sign data, produced from a matched pairs sample of ordinal data.
a. Specify the competing hypotheses to determine whether the proportion of negative signs is significantly greater than the proportion of positive signs.
b. Calculate the value of the test statistic.
c. What is the decision rule with a 1 % level of significance?
d. What is the conclusion? Explain.
Paul, it was great to see you at the party the other night. Everyone there was doing crack. Incidentally, how long have you been dealing that stuff?
State an appropriate null hypothesis and alternative hypothesis for her to consider as the framework for a one-proportion z-test. Calculate the p-value of the observed sample proportion
determine a the x2 test statistic b the degrees of freedom c the critical value using a 0.05 and d test the hypotheses
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The standard deviation of 6. What is the probability that a class of 50 has an average midterm mark that is less than 75?
let x be a random variable that represents the number of students who are absent on a given day from a class of 25. the
a study is to be conducted on the proportion of u.s. citizens who believe the minimum wage should be raised. what is
the produce manager for a large retail food chain is interested in estimating the percentage of potatoes that arrive on
A car rental company has determined that the probability a car will need service work in any given month is 0.2. The company has 900 cars.
Compute the variance, standard deviation, range, interquartile range, and coefficient of variation. Are there any outliers? Explain.
for the following decide whether the binomial or hypergeometric distribution is the most appropriate model. give a
Hospitials having fewer that 1000 discharges is estimated from a simple random sample of size 25. Use the central limit theorem to sketch the approximate sampling distribution of the estimate.
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