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A manufacturer of a chemical used in glue, attempting to control the amount of a hazardous chemical its workers are exposed to, has given instructions to halt production if the mean amount in the air exceeds 3.0ppm. A random sample of 50 air specimens produced the following statistics: sample mean = 3.1 ppm , sample standard deviation = 0.5 ppm. Calculate the appropriate test statistic to test the hypotheses.
A. 0.20B. -0.20C. 10.00D. 1.41E. -1.41
Is this test will be given to 600 randomly selected people, where each person has the illness, find the probability that there will be at least one false negative.
Use the elimination method to find a general solution for the given linear system, where differentiation is with respect to t. x'+2y=0 and x'-y'=0
Important information about Probability and Events, Events A and B are mutually exclusive events defined on a common sample space. If P (A) = 0.4 and P(A or B) = 0.9, find P(B).
A mini license plate for a toy car must consist number followed by two letters. Each letter must must be a C, A or R. Each number must be a 3 or 7 Repetition of letters is permitted. License plate sample space and probability
Find the inverse of the matrix.
If an 8 foot beam will support up to 750 pounds when the beam is 4 inches wide and 2 inches thick, what is the maximum safe load in a similar beam 10 feet long, 6 inches wide, and 2 inches thick?
Presume in community 1, 52% of individuals who will vote in election favor candidate A while while 48% favor candidate B. In community 2, 46% favor candidate A and 54% favor B.
Factor the polynomial and state the multiplicity of each zero and zeroes of a real polynomial
to determine the number of deer in a game preserve, a conservationalist catches 394 deer, tags them and lets them loose. Later, 492 deer are caught, 246 of them are tagged, How many deer are in the preserve?
A charitable organization spent $2,940 for administrative expenses. This amount is 12% of the money it collected. What is the total amount of money that the organization collected? Please Explain.
Recent study of television viewing, 73% of first year college students stated that university well off financially is a very important personal goal. What is the probability that a similar study would have the same sample mean or higher?
Explain why vectors QR and RQ are not equivalent. Explain when the elimination method for solving a system of equations is preferable to the substitution method. Give examples.
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