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Quitters. Does being part of a support group affect the ability of people to quit smoking? A county health department enrolled 300 smokers in a randomized experiment. 150 participants were assigned to a group that used a nicotine patch and met weekly with a support group; the other 150 received the patch and did not meet with a support group. At the end of the study, 40 of the participants in the patch plus support group had quit smoking while only 30 smokers had quit in the other group.
(a) Create a two-way table presenting the results of this study.
(b) Answer each of the following questions under the null hypothesis that being part of a support group does not affect the ability of people to quit smoking, and indicate whether the expected values are higher or lower than the observed values.
i. How many subjects in the "patch + support" group would you expect to quit?
ii. How many subjects in the "patch only" group would you expect to not quit?
Math 7731 - Mathematical Problems in Industry Assignment. We have now proved (1) for the special case of f as described in (b). How do you think we would prove it for any f ∈ H10(a, b)? (Describe in words.)
HEALTH-CARE PLAN OPTIONS A new state employee is offered a choice of ten basic health plans, three dental plans, and two vision care plans.
1. I am deciding on whether to invest 400,000 CAD to open a convenience store in particular spot in Ottawa. I know that the business will be profitable, with income of 70,000 CAD per year, if the store will have in average μ = 60 or more customers..
The owner of a local chocolate shop wants to develop a new trail mix. How many pounds of chocolate covered peanuts worth $5 a pound should be mixed with 10 pounds of granola bites worth $2 a pound to get a mixture worth $3 per pound?
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Prove by contradiction that if n ≥ 2 is an integer and not a prime number, then n is divisible by an integer x with 1
A time standard was set at 0.20 hour per unit based on the 50th unit produced. If the task has a 90% learning curve what would be the expected time of the 100th, 200th and 400th unit?
A steel company produces two types of machine dies, part A and part B. the company makes a $3.00 profit on each part A that it produces and a $6.00 profit on each part B that it produces.
63 percent of men consider themselves basketball fans. You randomly select 10 men and ask each if he considers himself a basketball fan. Find the probability that the number who consider themselves basketball fans is (a) exactly eight, (b) at leas..
A horizontal disk of radius a centered at the origin in the xy-plane is rotating about a vertical axis through the center.
If an object is given an initial velocity straight upward of v0 feet per second from a height of s0 feet , then its altitude's after 1 second is given by the formula
If the probability of making each shot is 3/4, what is the probability that he will make both shots?
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