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In an opinion poll, 500 people are interviewed and 29.5% answer NO to a particular question.
Calculate the lower limit of an approximate 99% confidence interval for the underlying probability (not the underlying percentage ) of answering NO. Show full work.
Speed of cars travelling on I-85 in Gaston County is normally distributed with average speed (µ) of 66 MPH and standard deviation (σ) of 8 MPH.
A special test is given to people complaining of sever headaches. if someone has a brain tumor, the test is positive with a probability of .8 (80%).
Normally distribution with µ=8 minutes and σ=2 minutes. If you select random samples of 25 calls, what percentage of the sample means would be between 7.8 and 8.2 minutes?
The amounts of money requested on home loan applications at a particular bank follow the normal distribution, with a mean of $80,000 and a standard deviation of $24,000. A loan application is received during the day.
suppose we have a set of blood pressures with a mean of 70 diastolic and a sample standard deviation of 10 points. if
urn 1 has five white and seven black balls. urn 2 has three white and twelve black balls. we flip a fair coin. if the
The heights of 20- to 29-year-old females are known to have a population standard deviation 1) = 2.7 inches. A simple random sample of n = 15 females 20 to 29 years old results in the following data
Utilize this information to construct a probability table, and then calculate each of the given probabilities:P (female and domestic car).
Let random variable X represent number of heads on first toss and y total number of heads from three tosses. Sketch tree view with X as first level and Y/X as second level and determine conditional probability p(Y=2/X=1).
Using the Binomial Distribution, find the probability that if Air Northeast books 21 people on a flight, not enough seats will be available for all booked passengers.
a song writer wishes to compose a melody. each note in the melody must be one of the 14 notes in her vocal range. how
Use a calculator or appropriate computer software to verify that, for the preceding data, xbar = 5.1.
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