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(1) Create a set of data that can be modeled as a polynomial function. Please provide a reference to the data. Plot the data using Microsoft Excel including the equation for the fit. Discuss how closely the data seem to match to the best fit line.
(2) Do the same for data that can be modeled using a rational function. Include in your answer how this can be used in a real-life application.
Chi-square test for independent of attributes - A random sample of students is interviewed to determine if there is an association between class and attitude toward corporations?
What is the probability that the next customer will request extra unleaded gas and fill the tank (A union B)?
A physiologist wishes to study the effect of birth control pills on exercise capacity. Five female subjects who have never taken the pill have their maximal oxygen uptake measured during a treadmill session.
Test, at the 5% level of significance, whether the population standard deviation of hours spent studying is less than 10. Use the Critical value approach.
A biologist has found the average weight of 12 randomly selected mud turtles to be 8.7 lb with standard deviation 3.6 lb. find a 90% confidence interval for the population mean weight of all such turtles.
Does this mean immigrants tend to earn more than other people? Or does it mean immigrants improve a state's economy? If not, what could explain the correlation?
Thirty homes responded, and the sample mean water use per day was 77 gallons with a standard deviation of 9.0 gallons per day.
Using the .05 level of significance: a) Is there a difference among types of gasoline? b) Is there a difference in the cars?
Suppose that SAT score is normally distributed with a mean 988 and a standard deviation of 211 in 2004.A local college plans to set up a scholarship budget for 2005 where $5000 will be awarded to each incoming freshman whose SAT score is higher th..
The sample mean was $22,098 and the standard deviation was $6050. Is there evidence at the 1% significance level that the cost of attendance has increased?
Determine the covariance matrix for values of this process at time t=1,2,3,4. Determine its inverse(numerically) and write formula for pdf of corresponding random vector.
A new process for producing synthetic diamonds can be operated at a profitable level only if the average weight of the diamonds produced by the process is greater than 0.5 karat.
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