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The director of transportation of a large company is interested in the usage of her van pool. She considers her routes to be divided into local and non-local. She is particularly interested in learning if there is a difference in the proportion of males and females who use the local routes. She takes a sample of a day's riders and finds the following: Male Female Local 27 44 Non-Local 33 25 She will use this information to perform a chi-square hypothesis test using a level of significance of 0.05. A) Please develop the Expected frequencies table based on the above information. B) Given that π1 represents the proportion of males who use local routes and π2 represents the proportion of females who use local routes; perform the Chi-square test of hypothesis for the following. H0:π1 = π2 H1:π1 ≠ π2
You have been asked to study the effects of an employee-wide training program, in a company of 500 employees, designed to reduce the amount of customer complaints.
If you concluded in part (a) above that the two variables are CI(1,1), estimate the long-run equilibrium relationship between PriCon and PerDisInc by the DOLS and FMOLS methods. Briefly comment on the results.
List the simple events in the sample for this experiment. Assuming that each pair of city council members has an equal chance of being selected, assign probabilities to each simple event.
Assume for the sake of this question that GRE scores are normally distributed with a mean of 1000 and a standard deviation of 200. What percentage of students taking the exam will get scores of 1400 or higher?
The average price for a new home in a certain neighborhood is $275,000 with a standard deviation of $20,000. What is the probability that a particular home will cost between $280,000 and $300,000?
Many companies use sampling to determine whether a batch should be accepted. A (n, c) sampling plan consists of inspecting n randomly selected items from a batch and accepting the batch if c or fewer sampled items are defective.
What is the hospital's cost of capital assuming that the hospital has the following capital structure on its Statement of Financial Position.
Develop a test of hypothesis to determine if the mean time spent in the mall is more than 0.75 hours. Use the .05 significance level.
Explain why those rates may be more meaningful as a measure of change across time than the actual numbers of those events.
The newspaper has charged that your police department responds more slowly to 911 calls in poor neighborhoods than in more wealthy ones.
Compute the mean and variance of the following discrete probability distribution.
The yield strength of a metal bolt has a mean of 6,050 pounds with a standard deviation of 100 pounds. Twenty samples of three bolts were tested, resulting in the means shown below.
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