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Annual food consumption survey shows that number of instant food meals consumed per month by university students is normally distributed with a mean of 10 and a standard deviation of 3.
a. Calculate the proportion of students consume more than 12 instant meals per month?
b. Estimate the probability that in a random sample of 25 students' more than 275 instant meals are consumed.
Three shafts are made and assembled into a linkage. The length .of each shaft, in centimeters, is distributed as follows.
Why might it not be a good idea to take the log of Hbath? Also generate a variable equal to the age of the house - how many valid observations do you have? Briefly explain why you will have exactly 6 fewer observations to use in estimating model
How would you find the probability of selecting someone who has diabetes and on an IV?
A study was conducted by Douglas C. West to examine under what conditions, if any, advertising agencies take more risk. The primary statistical technique
the data set toxemia contains information for a sample of 100 infants born in two hospitals in boston. indicators of a
Use a statistical package or the procedure in Section 14.7 to do this test. What can you conclude?
Find the probability that fewer than 7 are satisfied. c) Find the probability that 8 or more are satisfied. d) Find the probability that between 4 and 7 are satisfied with the airline.
Using data mining, it is possible not only to capture information that has been buried in distant courthouses but also to manipulate and index it. This process can benefit law enforcement but invade privacy. In 1996, Lexis-Nexis, the online inform..
Birth days Births are not evenly distributed across the days of the week. Here are the average numbers of babies born on each day of the week in the United.
The quality control manager at a light bulb factory needs to determine whether the mean life of a large shipment of light bulbs is equal to 375 hours.
CONSUMER SURVEYS A leading manufacturer of kitchen appliances advertised its products in two magazines: Good Housekeeping and the Ladies Home Journal.
consider the following. give your answers correct to two decimal places.a determine the value of the confidence
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