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At Concordia University, 70% of new students entering the Teaching English as a Second Language (TESL) degree are female. Of those female students, 85% of them will graduate, whereas 90% of males will successfully complete the same programme. If a new TESL student is chosen at random, what is the probability that:
a) They graduate and they are female?b) They are male and do not graduate?c) They graduate?d) They are female, given that they do not graduate?
If 700 stolen cars are randomly selected, what is the mean and standard deviation of the number of cars recovered after being stolen?
Determine margin of error was used in creating confidence interval above? Determine the sample size required to obtain the margin of error of 10.97 with 90% confidence interval?
For what value of t will the null hypothesis not be rejected?
Show that Pearson's Chi-square statistic for testing Ho : 1 = 2 when there are k-categories reduces to Z^2 when k = 2, where Z = 2 sqrt(n)(p1-1/2) is the standard Z-test for testing Ho : 1 = 1=2
Assume a very large normally distributed population of scores on a test with mean 77 and standard deviation 7.
For the sample of 32 lg us cities the correlation between the mean # of sq ft per office worker and the mean monthly rental rate in the central business district is the -.363 at the .05 significance level
An insurance company states that 90% of its claims are settled within 5 weeks. A consumer group selected a random sample of 100 of the company's claims and found 75 of the claims were settled within 5 weeks.
The weight for a group of 18 month-0ld girls are normally distributed with a mean of 24.4 pounds and a standard deviation of 2.6 pounds. Use the table to find the percentage of 18 month-old girls who weigh more than 27.8 pounds.
MATH1550H: Assignment: Question: Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form
Hypothesis test for the difference between two means - To make the data comparable, certain features, such as the deductible amount and limits of liability, are standardized.
A simple random sample of 50 items from a population with σ 6 resulted in a sample mean of 32.
Why then does it matter whether we assume straight-line or MACRS depreciation when we assess project NPV?
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