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Three identical opaque urns each contain four marbles of identical size and weight. one urn contains 3 black marbles and 1 white marble. Another urn contains 3 black marbles and 1 blue marble. The third urn contains 2 black marbles, 1 blue marble, and 1 white marble. Answer the following 2 questions.
1. If you choose one of the urns at random, what is the probability that you will have chosen the urn with no blue marbles?
2. You are permitted to draw two marbles from an urn. you do so and the result is two black marbles. what is the probablity that the urn you drew from is that with no blue marbles.
Formulate an appropriate hypothesis test to examine at the 10% level of significance whether the manager's worries are justified.
Pharmacies continually monitor their prescription filling process. A local pharmacy has noted that the time to fill a prescription for a generic antibiotic is normally distributed, with a mean of 13.3 minutes and a standard deviation of 2.8 minute..
suppose the goodyear tire company developed two new brands of tires and would like to compare the variability of the
Let X 1 , X 2 , X 3 , X 4 be a random sample from a Poisson distribution with parameter λ and let Y = X 1 + X 2 + X 3 + X 4 . You decide to test λ = 1.60 versus λ
Assignment Objectives: Construct a scatter plot for two variables, Compute the correlation coefficient, Compute the formula for the regression equation
you are picking a bouquet of 20 flowers for your mother at random from a garden with 25 conflowers 35 daisies and 42
Adult women in Japan have heights which are normally distributed with mean 158 centimeters and standard deviation 6 centimeters. Which country has the higher percentage of women taller than 167 centimeters?
question a black and red die are thrown and let x be a random variable denoting the sum of the dice.a. find all sample
a student received an a on the first test of the semester. the student wants to calculate the probability of scoring an
Assume you always reject null hypothesis, regardless of any sample evidence. Determine the probabiliyt of Type II error? P(Type II error).
consider the continuous triangular distribution yx4.5 where 0ltxlt3. a what is the probability of 0ltxlt3? b what is
An executive drives his vehicle from home to work daily. Driving times are normally distributed with a mean of 35 minutes and standard deviation of 8 minutes.
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