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In hypothesis testing we must balance the 2 types of errors, Type I and Type II. This is not unlike what happens in a jury trial. This week we will discuss the similarities and differences between hypothesis testing and the trial of a defendant. Here are some suggestions of ideas you might discuss: how difficult is it to balance the two types of errors? how is a null hypothesis similar to the assumption of innocence in a jury trial? Is it possible to prove a hypothesis true or false? Is it possible to prove innocence or guilt? What about the burden of proof?
Study investigates whether there are differences in the outcomes of three different treatments for anxiety. The treatment conditions that are compared are treatment with medication, treatment with psychotherapy, and placebo (inactive pills). ..
a sample of 60 firms was gathered and 50 stated that they spend more than $50 million per year on safety. test the accountants claim at the 0.05 level of significance
What is the aim of Ms. Gorman research?
State the number of friends (or connections) that you have on Facebook (or Linkedin). In case you have more than 365 friends on the social media, think of an alternative group of friends or contacts. What is the chance that there are at least 2 peopl..
Cars arrive at a particular junction at a rate of 1.5 per minute. A little old lady takes 20 seconds to cross the road at this junction and sets out as soon as one car passes. What is the probability that she gets across the road before the next ca..
Archie is taking a course in probability theory. Discussion sessions with the class TA (teaching assistant) conflict with Archie's trips to the beach. Archie has to decide between attending TA sessions, which might help him do better in the probabili..
An analysis was done to see if there was a correlation between the number of days of class missed and a student's GPA.
A Gallup Poll used telephone interviews to survey a sample of 1025 U.S. residents over the age of 18 regarding their use of credit cards. The poll reported that 76% of Americans said that they had at least one credit card. Give the 95% margin of erro..
The length of time between breakdowns of an essential piece of equipment is an important factor in deciding on the amount of auxiliary equipment needed to assure continuous service. A machine room foreman believes the time between breakdowns of a par..
If A and B are independent events which rule do we use? A. P(A or B) = P(A) + P(B) B. P(A and B) = P(A) . P(B)
quantitative analysis for decision making class please write for each summarizing with highlights of the review items
if you were constructing a 99% confidence interval of the population mean based on a sample of n= 20 where the standard deviation of the sample s= 0.05 the critical value of t will be
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