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Since the population proportion is not specified, it is common practice to use 50% in tis place. You cannot define the population proportion as 25% for problem 1-5..
A company claims to have invented a hand-held sensor that can detect the presence of explosives inside a closed container. Law enforcement and security agencies are very interested in purchasing several of the devices if they are shown to perform effectively. An independent laboratory arranged a test. They placed four empty boxes in the corners of an otherwise empty room. For each trial they put a small quantity of an explosive in one of the boxes selected at random. The company's technician then entered the room and used the sensor to try to determine which of the four boxes contained the explosive. The experiment consisted of 50 trials, and the technician was successful in finding the explosive 16 times. Does this indicate that the device is effective in sensing the presence of explosives?
1.Specify the parameter(s) in question. What type of hypothesis test will be used?
2.Write the null and alternative hypothesis using appropriate symbols.
3.Determine the test statistic showing the work for the formula.
4.Specify the p-value and what it represents in the problem using the appropriate probability distribution.
5.Interpret your results. (Explain clearly how the decision is made in terms of the null hypothesis and give a conclusion in context.)
A 240 horsepower car beginning at a stop goes 1/10 of a mile. At optimum performance, what is the maximum speed in miles per hour the car can reach? Feet per minute?
Description of Probability distribution function, Please give step-by-step process for solving the following probability problems.
Explain Supply and demand diagrams
Find all the subfield of K containing Q.
Find the slope
Find the mass of a wire formed by the intersection of the sphere x^2 + y^2 + z^2 = 1 and the plane x + z=0 if the density of a wire is x^2?
A fast food outlet has an average of 8 cars at the drivethrough during "lunch rush" 11am-1pm. On average, 2 cars per min. arrive at the resaurant parking lot, and consider the drivethrough
Explain how to derive the distance formula (assuming that the distance formula is not yet known), first in 2 dimentional and then in 3 dimentional
Suppose the velocity v (in m/s) of a some moving object can be computed by the formula v=10t+4, where t (in s) is the time elapsed. What is the biggest possible error (worst case) of v if the error in the measurement of t is known to be less than 0..
Show that the osculating plane at every point on the curve r(t)= is the same plane. What can you conclude about the curve?
Probability of creating a mini license plate with an R. A mini license plate for a toy car must consist of a letter followed by two numbers. Each letter must be an R, U or N. Each number must be a 2 or 6
Question about Elliptic boundary value problem, Uxx means second derivative with respect to x, Uyy means second derivative with respect to y
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