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In a certain community, 20% of the families own a dog, and 20% of the families that own a dog also own a cat. It is also know that 28% of all the families own a cat.
What is the probability that a randomly selected family owns both a dog and a cat?
What is the conditional probability that a randomly selected family owns a dog given that it doesn't own a cat?
Based on the information in part (a), what decision should the director make about the books used for the courses if the goal is to keep the cost below $300?
samples of final examination scores for two statistics classes with different instructors provided the following
Clark Heter is an industrial engineer at Lyons Products. He would like to determine whether there are more units produced on the afternoon shift than on the day shift.
You play a game with two possible outcomes. Outcome A has probability 0.4 and outcome B has probability 0.6. When B occurs you win $2.00; otherwise, you lose $1.00. What is your expected value for this game?
Critically discuss how you can apply the concept and method of interval estimation to help you solve some of the problems in a regularly accounting department. Give a few examples.
Give a point estimate for the mean amount per customer spent at the supermarket and give a 99% confidence interval estimate for the mean amount per customer spent at the supermarket.
Determine the probability that a student will complete the exam in more than 60 minutes but less than 75 minutes? Determine the probability of completing the exam in one hour or less?
in a recent study on gender differences in education a sample of 7 boys had a mean score of 18.8 and a standard
its believed that that the mean number of dogs owned by dog-owning households is 2.1 dogs. an srs of 35 dog owners has
What is the minimum sample size needed if the total width of the confidence interval must be less than 5 percentage points?
When performing a 2-way ANOVA with replication you must first: A) Perform an interaction hypothesis test B) Take out the error because you ran replicates and error makes no sense with replicates
If there is a significant difference between proportions of females and males who plan to vote for the incumbent president. what is the p value of the test.
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