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A person has a health saver plan with the likelihood of spending per year: $1000 (.10), $2000 (.20) $3000(0.30) and $4000(0.4). With the health saver plan the amount of money you put into your health plan is not subject to federal taxes. if your federal income tax rate is 30% and your annual salary is $40,000. how much money should you put into the plan in order to maximize your income?
a researcher wants to find out how college students feel about their social security system. which of the following
Assume that the population is normally distributed. Can we conclude at the 0.01 level of significance that the mean waiting time on special orders at this furniture store exceeds 28 days? Perform a one-tailed test.
a recent poll of 700 people who work indoors found that 278 smoke. if the researchers want to be 98 confident of their
The mean SAT verbal score is 412, with a standard deviation of 90. Use the Empirical Rule to determine what percent of the scores lie between 412 and 592. (Assume the data set has a bell-shaped distribution.)
Ten bolts were selected randomly from a production line and the diameter of each was measured. Why do these diameters not have a binomial distribution?
a production process produces 90 non-defective parts. a sample of 10 parts from the production process is selected.a.
a population has u100 and sigma20. if you select a single score from this populaton on the average how close woud it be
Before 1918, in a random sample of 11 wolves spotted in the region, what is the probability that 8 or more were male?
Suppose you roll a standard die 2000 times and let X be the sum of the values you get. Using the Central Limit Theorem, for what value of a is P[X >= a] approximately equal to P[N(0,1) >= 2] ?
Joe is considering pursuing an MBA degree. He has applied to two different universities. The acceptance rate for applicants with similar qualifications is 25% for University A and 40% for University B.
At a = 0.05, can you reject claim that at least 52% of adults are more probable to purchase a product when there are free samples?
You are taking a multiple-choice quiz that consist of 7 questions. find the probability of guessing exactly four answers correctly.
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