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By investigating the association between smoking among mothers and infant low birth weight. You were asked to calculate a measure of association like an Odds Ratio together with the confidence intervals. They asked you to calculate a 90% confidence interval instead of a 95% confidence interval.
Will the lowering of the confidence interval from 95% to 90% increase or decrease the chance of making Type 1 error?
Will this affect the probability of making Type 2 error?
How will this affect the power of the study? Explain your answer.
Suppose that 23% of the people that will buy apple, while 77% do not. Assume that each person is independent of the any other.
Define the objective function for a firm and the decision variables Define the constraints for the problem (constraint for passengers and baggage)
Calculate the profit maximizing quantity for the individual firm. Calculate the firm's short run profit(loss) at that quantity, and the firm's producer surplus.
The questions asked for the total amount of items they purchased, the total amount of money spent on the purchase and the average weight of each bag of grocerie
What is the probability that the first time the sum is exactly 7 is on the third roll?
Does this indicate that the new employee's output is significantly different from the population mean output?
consider a parallel system of 3 components the system functions as long as at least one of its components functions.
Without finding the confidence intervals, explain which one will have the larger margin of error.
Critically illustrate out the characteristics of a standard normal distribution? Can two distributions with the same mean and different standard distributions be considered normal?
Emergency switch. Safety engineers must determine whether industrial workers can operate a machine's emergency shutoff device.
What is the probability of two or more heads given that there was at least one head?
A deck of cards is shuffled and then divided into two piles of 26 cards each. We say that a suit is unsplit if all 13 cards of that suit are in the same pile. Compute the probability that at least one suit will be unsplit.
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