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Assuming we know σ = 5.4, construct a 92.5 percent confidence interval for the true population mean, µ, given that a random sample of 94 values was noted to have x¯ = 80.0.
consider the experiment of drawing two cards from a shuffled deck and then putting them back. what is the probability
the intelligence quotient iq test scores are normally distributed with a mean of 100 and a standard deviation of 15.
The population standard deviation is unknown. If you assume that the population mean is 19, find the P-value corresponding to the hypothesis that the average cutthroat trout length is different from 19 (i.e. two-tail test).
Write an essay on the great migration of the black population to the northern United States. What were the reasons for the great migration? What were some of the risks involved for the African Americans who undertook the move?
Gallons and standard deviation 12 gallons. On a randomly selected day, the probability that the store sells at least 154 gallons is?
The pre-cooked weight of hamburgers at a restaurant has been found to be uniformly distributed between 4.1 and 4.9 ounces. Let X be a random variable for the pre-cooked weight of a randomly selected hamburger.
In 1997, a survey of 900 households showed that 151 of them use e-mail. Use those sample results to test the claim that more than 15% of households use e-mail. Use a 0.05 significance level. Use this information to answer the following questions?..
What is the margin of error for a 95% confidence interval for the difference of the two means (low capacity - high capacity)? (Answer to the nearest hundredth.)
in the biomedical engineering field a study of coronary artery disease had three possible partitioning events b1 the
a statistics practitioner would like to estimate a population mean to within 50 units with 99 confidence given that the
1.a researcher is interested in comparing sat scores for students enrolled in public schools private schools and those
When there are multiple observations per subject, what issues are there with doing a MNL and an ordered logit model, answer in detail and provide example.
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