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Hypothesis testing and type errors Answer the following problems showing your work and explaining (or analyzing) your results. 1.Explain Type I and Type II errors. Use an example if needed. 2.Explain a one-tailed and two-tailed test. Use an example if needed. 3.Define the following terms in your own words.
4.A homeowner is getting carpet installed. The installer is charging her for 250 square feet. She thinks this is more than the actual space being carpeted. She asks a second installer to measure the space to confirm her doubt. Write the null hypothesis Ho and the alternative hypothesis Ha. 5.Drug A is the usual treatment for depression in graduate students. Pfizer has a new drug, Drug B, that it thinks may be more effective. You have been hired to design the test program. As part of your project briefing, you decide to explain the logic of statistical testing to the people who are going to be working for you.
•Write a paragraph explaining which error would be more severe, and why.
You are the financial manager of a furniture company. It is your job to create supply and demand graphs that show the break-even point for the company.
a couple just had a baby.how much should they invest now at 5.5% compounded daily in order to have $40,000 for the child's education 17 years from now? compute the answer to the nearest dollar.
How many dozen of each shirt can this company produce in one week assuming that the machines are used to maximum capacity?
Calculate the value of the appropriate test statistic
Find the directional derivative at P(-2,2,-1) in the direction of Q(18,-2,4). Find the direction of maximum decrease at P. (your answer does not have to be unit vector.) What is the maximum rate of decrease?
If the speed ( in m/sec ) of a particle moving on the x-axis at time t seconds (t>0) is given by: V(t)=t^3-8t^2+15t+10 estimate during what time period the speed of the particle is less than 10m/sec.
Let x, y be elements in the Boolean algebra B. Prove that x = y if and only if xy + xy = 0. How many rows are needed to construct the (function) table for a Boolean function of n variables?
Application of differential calculus: Maximization and Minimization and find what are the largest and smallest revenues your company can make under this deal?
In your own words, explain how to subtract fractions with like denominators. Give an example.
A researcher expects a treatment to produce an increase in the population mean. The treatment is evaluated using a one tailed hypothesis test, and the test produces z = +1.85. Based on this result what is the correct statistical decision?
show all work. Last fall, a gardener planted 62 iris bulbs. She found that only 48 of the bulbs bloomed in the spring.
hoping to lure more customers to the downtown area the city council has voted to build a new parking garage. they plan
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