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Your factory receives 3 lots of screws. There are 100 screws in Lot 1, 200 in Lot 2 and 300 in Lot 3. Lot 1 contains 1% defective screws. Lot 2 contains 2% defective screws and Lot 3 contains 3% defective screws. All the screws are dumped in one bin and then a screw is selected randomly
a) what is the Probability that the selected screw came from Lot 1?
b) what is the Probability that the selected screw was defective?
c) if the screw was defective what is the probability that it came from Lot 2?
a fair ten-sided die is rolled once. event a is the event that a number less than 7 is rolled. event b is the event
A recent article in the Denver Post indicated that the mean selling price of the homes in the area is more than $220,000. Can we conclude that the mean selling price in the Denver area is more than $220,000? Use the .01 significance level. What is..
The correlation between his test and the BDI was r =.14. Evaluate this correlation. What does this correlation tell us about the relationship between these two instruments?
A nationwide test taken by high school sophomores and juniors has three sections, each scored on a scale of 20 to 80. In a recent year, the national mean score for the writing section was 47.2 , with a standard deviation of 10.2.
Management plans to sample 150 packages per week. What is the appropriate control chart?
question scores are obtained from the law school admission test lsat are normally distributed with a mean score of 550
In the past an autoobile repair shop owner has noticed that sales increased ats certain economic indicators decreased. Calculate the expected sales increase and the standard deviation.
Based on your experience using ANOVA and Nonparametric tests, what additional information would you recommend to the key decision maker solve the challenges given in a company that provides software solutions to wide range of clients?
identify the sample space of the probability experiment and determine the number of outcomes in the event. draw a tree
Is the number of children that a college student currently has independent of the type of college or university being attended?
You want to determine whether or not an observational coding system you've created for ADHD is better as a system with 5 behavioral scales or 3 behavioral scales. What test should be run?
Identify each of the random variables as continuous or discrete.
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