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500 kindergarten (n=500) students showed that they have seen an average of 5000 (x¯ = 5000) hours of television. If the sample standard deviation of the population is 900 (s=900), how do you find the 95% confidence interval of the mean for all the students.
Scenario One: Automobiles arrive at the drive-through window of the Elm Street branch of the local bank at the rate of 1 every 12 minutes. The average service time is 7.5 minutes. The Poisson distribution is appropriate for the arrival rate and se..
Manufacturing and Product Development The coverage of a gallon of paint depends on the surface, the type and quality of the paint, and the applicator.
using the simple random sample of weights of women from a data set we obtain these sample statistics n40 and x146.82
What conclusion is appropriate when He cannot be rejected and what conclusion is appropriate when He can be rejected - What is the p-value for the hypothesis test?
Hypothesis testing in areas such as medicine, courts, marketing analysis. How might hypothesis testing be used to determine where to put stop lights?
Women executives. A company is criticized because only 13 of 43 people in executive-level positions are women.
A large manufacturing firm is concerned about lost production: that is, production capability that was not utilised for a variety of reasons.
A TV executive is interested in the popularity of a particular cable TV show. She has been told that a whopping 68% of American households would be interested in tuning in to a new network version of the show.
Sixty students were matched by initial pulse rate, with the two with the highest pulse forming a pair, and so on. Within each pair, one student was randomly.
Explain the difference between a left tail, two-tailed, and right tailed text. When would we choose a two tailed test? How can we tell the direction by looking at a pair of hypothesis?
Write a subroutine that takes three arguments, X, Y , and Z (they are in $a0, $a1 and $a2). It then computes X · Y · Z and returns it.
Given that a respondent is over age 50, what is the probability that he or she gets news primarily from newspapers?
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