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According to the mortgage banking firm Lomas & Nettleton, 95% of all households in the second half of last year lived in rental accommodations.
The company believes that lower interest rates for mortgages during the following period reduced the percentage of households living in rental units.
The company therefore wants to test H0: p ≥ 0.95 versus the alternative H1: p< 0.95 for the proportion during the new period. A random sample of 1,500 households shows that 1,380 are rental units. Carry out the test, and state your conclusion. Use an αof your choice.
What are the mean value and standard deviation of the number of students who want new books? What is the probability that the number of students who want new books is more than two standard deviations above the mean?
3. (SPSS) A criminal psychologist wants to examine the level of narcissistic personality traits between those who are diagnosed with antisocial personality disorder (ASPD) and those who do not qualify for ASPD. She administers a measure of nar..
1. Show that in any finite dimensional Banach space (Rk with any norm), for any closed, convex set C and any point x not in C , there is at least one nearest point y in C ; in other words, ly - x l= infz∈C lz - x l.
Suppose that the number of babies born during an hour at a hospital's maternity wing follows a Poisson distribution with a mean of 4 per hour.
Determine the test sequence that minimizes the total expected cost of testing an item. Prove that your proposed sequence is optimal in minimizing the total expected cost of testing an item.
define basic and applied. your definitions should highlight the primary distinctions between the two types of research.
Why do we want to assume that our sample data represent a population distribution? What are the differences between the binomial and normal distributions?
A doctor knows from experience that 20% of the patients to whom he gives a high blood pressure drug will have undesirable side effects. Assume the doctor gives that drug to ten of his patients
a company has recorded data on the weekly sales for its product y the unit price of the competitors product x1 and
Suppose you are planning a sample of employees to determine the monthly average # of vacation days. Standards set: Confidence level of 99% and an error of less than 5 units. Standard deviation be 6 units. What would be the required sample size?
The sticker on the car states that it gets 24 mpg on the highway, but measurements show that its highway mileage is actually 32 MPG. Find the values of the absolute and relative errors. Round to the nearest integer as needed
Develop a point of the population standard deviation for life expectancy of VCRs.
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