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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.
Find a probability that a randomly chosen student owns atleast one of the above vehicles. What is the probability that a randomly chosen student does not own a bike.
Use Excel and determine the number of each type of person that will be needed to complete the job within the allotted time and at minimum cost.
Distribution showing the advertising expenditures for 60 manufacturing companies located in the Southwest. Estimate the mean and the standard deviation of advertising expense.
the following data show the daily closing prices in dollars per share for a stock. period price 1 82.87 2 83.00 3
In a sample of 4 items, what is the probability that exactly 3 are acceptable? Assume the samples are drawn without replacement. (Round your answer to 4 decimal places.)
Q2 is dummy variable equal to 1 in second quarter and 0 otherwise; and Q3 is final dummy variable equal to 1 in third quarter and 0 otherwise. Determine the Base Quarter?
You're not sure if you should buy a stock and need to discover the probability of the stock having a positive return (based on one year).
Review the procedures used to verify that collected data are coded and entered correctly before they are analyzed through statistical software packages.
consider the accompanying data on plant growth after the application of different types of growth hormone.1.
A corporate executive officer is attempting to arrange a meeting of his three vice presidents for tomorrow morning. He believes that each of these three busy persons, independently of the others
(Distribution of Maximum). Suppose n numbers are drawn at random from f1; 2; ··· ;N g. What is the probability that the largest number drawn is a specified number k if sampling is (a) with replacement; (b) without replacement?
q1. the mean of a normal probability distribution is 60 the standard deviation is 5.a what percent of the observations
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