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Suppose the proportion x of surface area in a randomly selected quadrant that is covered by a certain plant has a standard beta distribution with aplha = 4 and beta = 3:
E(X) = 0.5714
V(X) = 0.0306
a) Compute P(X less than or equal to 0.4) estimate to four decimal places
b) Compute P( 0.4 less than or equal to X less than or equal to 0.8) estimate to four decimal places
c) What is the expected proportion region not covered by the plant?
What is the value of the coefficient of Blue Collar in your equation? What is the lower limit of the 95% CI for this coefficient? What is the upper limit of the 95% CI for this coefficient?
Need to get quiz done online goodness of fit and test for independence need to get over 80%
Determine the mean, median, and range for each of two data sets. b. Determine standard deviation using rule of thumb for each of data sets.
The university police department must write, on average, five tickets per day to keep department revenues at budgeted levels. Suppose the number of tickets written per day follows Poisson distribution with a mean of 9 tickets per day.
A store asked 250 of its customers whether they were satisfied with the service or not. The responses were also classified according to the gender of the customers. We want to study whether there is a relationship between satisfaction and gender.
In a mobile phone shop on a Sunday morning, out of n = 77 customers x = 19 buy a mobile phone. What is the 95% confidence interval for the proportion of customers buying a mobile phone?
How would you find the normal approximation to the binomial probability P(x = 5) in part A? Please show how you would calculate µ and σ in the formula for the normal approximation to the binomial, and show the final formula you would use without g..
The Kirschner Company has a contract to produce garden hoses for a customer. Kirschner has 5 different machines that can produce this kind of hose. Write the constraint that indicates they have to use at least three of the five machines in their p..
Assuming that the data is normally distributed and the sample size is greater than 30, calculate the critical values for a two tailed and a one-tailed test when alpha = 0.05
the life expectancy of a common brand of battery is normally distributed with a mean of 400 hours and a standard
Does the Southside qualify for the employment assistance program and provide the city council with a recommended course of action based on this result.
The first unit produced after the calibration effort to be found to be defective. What is the probability that machine is in adjustment?
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