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Calculate the following:
a) Determine the sample size necessary to estimate a population mean to within 1 with a 90% confidence given that the population standard deviation is 10.
b) Suppose that the sample was calculated at 150. Estimate the population mean with 90% confidence.
I want to see two methods are the significantly same or not. Each methods has 5 variables are inside. so I would like to see each 5 variables from methods A and B are significantly the same and overall the two methods are significantly same or not..
Let n = 269 represent the number of ticket reservations. Let r represent the number of people with reservations who show up for the flight. What expression represents the probability that a seat will be available for everyone who shows up holding ..
Do hotel managers on average vary significantly in femininity score from men in general?
use the following sample data to test whether the GPA are different at the 0.05 level of significance.
Would it be sensible to conclude that more than 10% of applicants are now failing the test?
Assume the probability of a tire blowout is 0.178% per 50,000 miles of use and that a person travels 15,000 miles per year in a car.
Pharmacies continually monitor their prescription filling process. A local pharmacy has noted that the time to fill a prescription for a generic antibiotic is normally distributed, with a mean of 13.3 minutes and a standard deviation of 2.8 minute..
Sketch a scatter plot that could represent data from each of following. Label the axes to indicate the independent and dependent variable.
Listed below is the selling price for a share of Coca Cola, at the close of the year. Determine the least squares trend equation.
What are the steps of the order of operations? Why is it important that you follow the steps rather than solve the problem from left to right?
How many spare tubes must the building custodian maintain to have at least 0.95 probability of replacing all failures on a given day?
If two people are randomly selected, what is the probability both are hopelessly romantic? What is the probability at least one is hopelessly romantic.
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