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Suppose that in a very large city 10.3 % of the people have more than two jobs. Suppose that you take a random sample of 65 people in that city, what is the probability that 9.5 % or more of the 65 have more than two jobs?
Define decision variables clearly. Formulate this as a linear programming problem and solve it with a detailed description of your output. Please include all output information.
What would be the approximate margin of error for this percent if the company asks 600 consumers?- How many consumers would need to be in the sample to provide a margin of error of about 5%?
If a single test is run and indicates that oil is present, what is the revised probability that oil is actually present?
given that z is a standard not a standard normal random variable find z for each situationa. the area tot he left of z
Write a system of equations that determine the probability q that makes this scenario a subgame-perfect equilibrium, once 8 is specified, as long as 8 is not too small.
Suppose X and Y are independent random variables with X ~ Gamma(a1, ?) and Y ~ Gamma(a2, ?). Is X + Y a gamma random variable? If so
What conclusion can you reach about ∑z?- Under what conditions would you prefer that your personal z score be negative rather than positive?
a. Specify the competing hypotheses in order to test for nonrandomness. b. What is the value of the test statistic?
A test statistic is computed from sample data in hypothesis testing and is used in making a decision about whether or not to reject the null hypothesis. True or False
Cholesterol levels are measured as followed: 185 225 240 196 175 180 194 147 223. Generate a 95% confidence interval for the true mean total cholesterol levels in children?
Test the hypothesis that the birthweight is independent of whether or not the baby survives its first year.
In a study of how managers attempt to manage earnings, researchers analyzed a sample of 515 earnings- management attempts from a survey of experienced auditors. The frequency of effects is summarized in the table shown. Research question: At α..
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