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A major automotive paint manufacturer has a "panel farm" on the coast of Florida. The purpose of this "farm" is to expose paints to different environ mental conditions (sun, rain, salt, and sand) to test durability. A set of panels from three test formulations was sent to the farm and left out in the elements for 6 months. After that time they were rated on their appearance using a scale of 1-10 ( 1 being good).
The data is in exposure .txt.
(a) Calculate summary statistics for each formulation.
(b) Graph the data.
(c) Summarize your findings.
1. A company is evaluating the impact of a wellness program offered on-site as a means of reducing employee sick days. A total of 8 employees agree to participate in the evaluation which lasts 12 weeks.
At the .01 significance level can we conclude the mean age is more than 8.4 years for the cars of university students? What is the p-value?
scores on the act test have a distribution that is approximately normal with mean 21.1 and standard deviation 5.1.what
Construct a scatter diagram of the data points and plot the least squares regression line on it. Find the least squares regression line. Show all of your work
Customers arrive into a queue, where they are served, and then depart. We model the time between two successive arrivals by an exponential distribution with an arrival rate l=9.
This is an example of a Binomial probability experiment; This is neither a Poissonnor a Binomial probability experiment; Not enough information to determine the type of experiment.
if 3 different factor levels show a lot of variation between levels this impliesa a large amount of error within each
In a study, 65 % of the 100 Republicans surveyed, favored the bill for a salary increase and 60 %of the 200 Democrats surveyed, favored the same bill for a salary increase. Test whether the proportions of Republicans and Democrats favoring this bi..
a population of n 10 scores has a mean 50 and a standard deviation 5. what is the population
The manager of Petroco service station wants to forecast the demand for unleaded gasoline next month so that the proper number of gallons can be ordered from the distributor.
what proportion of the data from a normal distribution is two standard deviations from the mean?1. 0.47722. 0.34133.
A bulb is selected at random from the storage room and tested.Find the probability that the bulb was produced by machine C given that it was still operating after 16 days.
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