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Let F be a forest of order 'n' containing 'k' connected components. Prove that F contains n-k edges.
country financials a financial services company uses surveys of adults age 18 and older to determine if personal
Compute a two-sided 90% confidence Interval estimate for µd.
A marketing firm asked a random set of married and single men as to how much they were willing to spend for a vacation. At *alpha*= .05, is a difference in the two amounts?
Lakewood fashions must decide how many lots of assorted ski wear to order for its 3 stores.Information on pricing, sales and inventory costs has led to the following payoff table,in thousands.
In a normal population with sigma=20, a random sample of size n gave X(mean)=56.53. At the 5% significance level, make a two-tailed test of the null hypothesis mu=50, when (a) n=24 (b) n=36
A bowl contains 16 chips, of which 6 are red, 7 are white, and 3 are blue. If four chips are taken at random and without replacement, find the probability that: there is at least one chip of each color.
1.a sociologist is studying the effect of having children within the first three years of marriage on the divorce rate.
it is believed 30 of all adults are overweight. how larger sample is necessary to estimate the true proportion of
Confirm whether given random variable is binomial distribution or not. If this experiment is finished with replacement, explain why.
for the standard normal probability distribution the area to the right of the mean is -0.5 0.5 1 any value between 0
describe and explain two alternatives to nhst. what do their proponents consider to be their
A hypothesis test is to be used to help determine if there is a difference between the proportion of 2 year college students and private university students that work at least 20 hours per week.
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