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Question: According to a recent article the average number of babies born with significant hearing loss (deafness) is approximately two per 1,000 babies in a healthy baby nursery. The number climbs to an average of 30 per 1,000 babies in an intensive care nursery. Suppose that 1,000 babies from healthy baby nurseries were randomly surveyed. Find the probability that exactly two babies were born deaf. Use the following information to answer the next four exercises. Recently, a nurse commented that when a patient calls the medical advice line claiming to have the flu, the chance that he or she truly has the flu (and not just a nasty cold) is only about 4%. Of the next 25 patients calling in claiming to have the flu, we are interested in how many actually have the flu.
If sample mean is M=44. Is this sufficient to demonstrate significant effect? Again assume a Two-tailed test with a=0.05.
Find a 95% confidence interval for the population variance in calories for sports drinks.- Find a 95% confidence interval for the population standard deviation in calories for sport drinks.
a restaurant offers a special pizza with 5 toppings. if there are 12 toppings from which to choose how many different
Let {Y(t), t ≥ 0} be the stochastic process defined in Question no. 21. (a) Calculate the distribution of Y(1 )+ Y(2).
Compare the respective purposes of one-way, randomized block, and two-way analysis of variance. In general, under what circumstances would each method be used?
If university officials say that at least 70% of the voting student population supporting the fee increase, what conclusion can be drawn based on a 95% level of confidence?
beverly mills has decided to lease a hybrid car to save on gasoline expenses and to do her part to help keep the
Suppose x has a uniform probability distribution. Is the amount dispensed by the machine a discrete or a continuous random variable? Find the mean and standard deviation for the distribution.
A driver hired at the beginning of a year can be used to meet the current year's requirements and is paid full salary for the current year. Determine how to minimize the bus company's salary, hiring, and firing costs over the next 5 years.
a. Each of a sample of 240 tomatoes grown with a new type of fertilizer was weighed (in ounces) and recorded. Draw a histogram and describe your findings.
Estimate of 3 days, a most likely time estimate of 8 days, and a pessimistic time estimate of 10 days - estimate of 6 days. and a pessimistic time estimate of 10 days.
Construct a 95% confidence interval estimate of the difference between the percentage of men and the percentage of women who fear flying.
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