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Suppose cholesterol levels for adult American women are normally distributed with a mean of 185 mg/l and a standard deviation of 28.8. What is the probability that a woman has a cholesterol level between 190.76 and 208.04?
7.5% of women have levels higher than what?
2.5% have levels higher than what?
2.5% less than what?
Answer fully and show me how to find the answers step by step to get the points. I know the correct answer for each.
Using an appropriate statistical test determine if there is a significant association between gender and satisfaction with the new initiative.
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a new light bulb is being considered for use in an office with computers. it is decided that the new bulb will only be
Is it reasonable to compute that the mean of the population is actually $15,000.
A manufacturer claims that the mean lifetime, , of its light bulbs is 49 months. The standard deviation of these lifetimes is 9 months. Seventy bulbs are selected at random, and their mean lifetime is found to be 46 months.
the statistical abstract of the united states reports that the mean daily number of shares traded on the nyse in 2002
Compute the correlation among the variables. Describe perfect correlation also negative correlation. Utilize the following data to answer questions related.
Temperature in certain city for the month of June follows a uniform distribution over the interval 61° F to 91° F. Find the temperature which 90% of the June days exceeds?
discuss the various sampling methods we might use in determining which items to include in a
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