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In the batch of 8,000 clock radios 9% are defective. Sample of 6 clock radios is arbitarily selected without replacement from 8,000 and tested. Entire batch will be rejected if at least one of those tested is defective. Determine the probability that entire batch will be rejected?
What are differences between dependent and independent samples? Provide examples. What are the implications for determining the tests used to analyze data?
Roberta scored in the 85th percentile on a standardized test of reading ability. What is Roberta's associated z score?
Draw a tree diagram representing the data. What is the probability that a vehicle stolen in this city will never be recovered?
Lab technicians at a major mdical lab can process an average of 400 blood samples a day with a standard deviation of 50 samples. The processing follows a normal distribution.
Fit a linear regression model for bp against sodium. Do you think this is a model with a good fit? Why?
Distinguish between a minimization and maximization LP model. Other than minimizing costs and maximizing profits, give a real-world example of where you would want to minimize something or maximize something.
Two components of reliability 0.95 are in parallel and this subsystem is connected in series to a component with a reliability of 0.90. Calculate the overall reliability of this system.
At a party there are 30 students over age 21 and 20 students under age 21. You choose at random 3 of those over 21 and separately choose at random 2 of those under 21 to interview about attitudes toward alcohol.
A cereal manufacturer wants to determine if the filling machine is operating to specifications. The machine is specified to fill to a 12oz level.
Inventory manager for Itex received wheels bearing from Wheel - Rite a small producer of metal parts , Unfortunately , Wheel -rite can only produce 500 wheel bearings from wheel rite each year.
Assume that the significance level is a= 0.1. Use the given information to find the p-value and the critical value (s). With H1: p = with line through it 1/2 the test statistic is z= - 1.35
A local health center noted that in a sample of 400 patients 80 were referred to them by the local hospital. a) Provide a 95% confidence level for all the patients who are referred to the health center by the hospital.
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