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Research on new juvenile delinquents revealed that 38% of them committed another crime. What is the probability that of the last 100 new juvenile delinquents put on probation, 30 or more will commit another crime?
Finding the probability selecting a defective item from a collection of items using tree diagram
Use a decision tree to describe the possible strategies and the consequences (or payoffs) of each. Show your decision tree.
At the 0.05 level of significance, is there evidence of a significant relationship between the age groups and where people primarily get their news? If so explain the relationship.
Determine the probably of selecting a female or an accounting major? Which rule of addition did you apply?
Construct a 98% prediction interval for the selling price of a 4l- year old house having 4500 square feet, 13 rooms, and an attached garage.
The critical F value with 6 numerator and 60 denominator degrees of freedom at α = .05 is:
Construct a 95 percent confidence interval for the true mean.
If the payoff from outcome A is twice the payoff from outcome B, then the ratio of these utilities will be.
Explain the value of test statistic using t distribution for the given value. Illustrate value of the t test statistic if you are testing a hypothesis.
Each vehicle had the gallon of gas added to the empty tank and then driven until empty. Number of miles travelled for all twelve readings are below. Use data to compute the mean and median mileages.
Using one proportion z test to find whether or not to support the claim - There is little evidence to reject H 0 , therefore they conclude the tvs are 20 pounds on average.
Determine the mean and standard deviation of following probability distribution.
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