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A polygraph (lie detector) is an instrument used to determine if the individual is telling the truth. These tests are considered to be 94% reliable. In other words, if an individual lies, there is a 0.94 probability that the test will detect a lie. Let there also be a 0.0060 probability that the test erroneously detects a lie even when the individual is actually telling the truth. Consider the null hypothesis, "the individual is telling the truth," to answer the following questions.
a. What is the probability of Type I error? (Round your answer to 4 decimal places.)
Probability
b. What is the probability of Type II error? (Round your answer to 3 decimal places.)
the average life of a certain type of small motor is 10 years with a standard deviation of 2 years. the manufacturer
Suppose we want to design a new placebo-controlled trial to evaluate an experimental medication to increase lung capacity. The primary outcome is peak expiratory flow rate, a continuous variable measured in liters per minute. The primary outcome will..
A City Survey states that 70 percent of all business owners favor increasing the parking fees. The city has commissioned a random sample of n = 100 business owners.
The mean age of 25 randomly selected college seniors was found to be 23.5 years, and the standard deviation of all college seniors was 1.3 years. Which of the following is the correct symbol for 1.3 years?
Let Y denote the number of students on his bus. Compute the expectations and variances of X and Y:
A baseball player gets a hit in 30 out of 100 times at bat. What is the probability that he gets a hit in his next at bat?
q1.the average number of pounds of meat that a person consumes each year is 218.4 pounds. let the standard deviation
There is significant evidence at alpha=0.05 t o show that the populations of endotoxin levels in children living varying distances from operating farms are not equal.
question a group of 11 people are going to the movies one saturday. adult tickets cost 10.50 each and child tickets
suppose that pa 0.4 and pacapb 0.12a find pbab are the events a and b mutually exclusive?if pb 0.3 are events a and
Suppose that 800 jawbreakers are selected at random from the production lines. Would it be unusual for this sample of 800 to contain 406 jawbreakers that weigh more than .4 ounces?
q1. use maslows hierarchy of needs to discuss the extent to which growth needs influence personality formation.q2.
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