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The housing department in the city of monitors the rent for rent-controlled apartments in the city. The mayor wants an estimate of the average rent. The housing the department must determine the number of apartments to include in the survey to be able to estimate the average rent within$100 using a 95% confidence interval. From past surveys, the monthly charge for rent-controlled apartments ranged from $1000 to $3500. How many renters must be included in the survey to meet the requirements? Repeat the work for 99%, 90% and 85%.
If the board wants to set the passing score so that only the best 80% of all applicants pass, what is the passing score? Assume that the scores are normally
Does correlation equal causation? Does the strength of correlation depend on the direction of the relationship? What is the meaning of a zero correlation? Explain your answers.
1. when performing a hypothesis test and the population standard deviation is known what is the p-value for a
Fab (www.fab.com) is a highly successful flash-deal Web site for designer goods. A flash-deal site (also called deal-of-the-day is an electronic commerce business model in which a Web site offers a single product for sale for a period of 24 to 36 ..
find solutions to the following problem. be sure to include all relevant information including hypothesis critical
Each CubeSat has optimal launch characteristics if the weight is close to 1 kg. Is there any evidence to suggest that the mean weight of CubeSats scheduled.
art students are registered for the same class and attend independently of each other.student a 80 of the timestudent b
What's the probability that Molly will pass Statistics?- At the end of the semester, we find out that Molly failed. What's the probability that she got Professor Kurtosis?
Given the following revenue and cost function for a business firm, calculate the break-even quantity, total revenue, total cost and total profit at break-even level of production.
on a multiple choice test of 13 questions each question has four 4 possible answers one of which is correct. for
Fit a linear regression model for bp against sodium. Do you think this is a model with a good fit? Why?
Satisfaction survey. A cable provider wants to contact customers in a particular telephone exchange to see how satisfied they are with the new digital TV service the company has provided. All numbers are in the 452 exchange, so there are 10,000 po..
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