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You are asked to do study of shelters for abused and battered women to determine the necessary capacity I your city to provide housing for most of these women. After recording data for a whole year, you find that the mean number of women in shelters each night is 250, with a standard deviation of 75. Fortunately, the distribution of the number of women in the shelters each night is normal, so you can answer the following questions posed by the city council.
a. If the city's shelters have a capacity of 325, will that be enough places for abused women on 95% of all nights? If not, what number of shelter openings will be needed?
b. The current capacity is only 210 openings, because some shelters have been closed. What is the percentage of nights that the number of abused women seeking shelter will exceed current capacity?
as part of the national health and nutrition examination survey hemoglobin levels were checked for a sample of 1139 men
a. If a night crew consists of 3 machinists, how many different crews are possible? b. If the machinists are ranked 1, 2,... , 20 in order of competence, how many of these crews would not have the best machinist? c. How many of the crews would have a..
Assume a seller would be willing to accept a price as low as $100 each for 5 machines, but the buyer offers a price of $150 each, which the seller accepts.
Find the confidence interval for the difference of the two means - Is there a significant difference in teacher's salaries between two states
Carefully sketch a Venn diagram illustrating the relationship among these three events and label each region with the corresponding probability
Is Paul tall? According to the National Center for Health Statistics, the distribution of heights for 15-year-old males has a mean of 170 centimeters (cm).
A professional hockey goal is 6 feet wide and 4 feet high. What is the area of the goal in square yards?
Explain whether the width of a 95% confidence interval would increase, decrease, or remain the same as a result of the following changes in the design of a survey.
Forty pairs of glasses are sold on a particular day and six have tinted lenses. Identify n, p, and x.
a major brokerage company has an office in miami florida. the manager of the office is evaluated based on the number of
Portfolio B's yearly return is normally distributed with a mean of 0.04 and a standard deviation of 0.06. Based on this information, what is the probability that over the next year, the return on portfolio A is lower than the return on portfolio B?
The county tells us that the dome receives yearly maintenance and the cost of that seems to be bell-shaped with an average cost.
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