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Question: Suppose that of a population of N items, k are defective in some way. For example, the items might be documents, a small proportion of which are fraudulent. How large should a sample be so that with a specified probability it will contain at least one of the defective items? For example, if N = 10,000, k = 50, and p = .95, what should the sample size be? Such calculations are useful in planning sample sizes for acceptance sampling.
Stafford Production, Inc., is concerned with the quality of the parts it purchases that will be used in the end items it assembles.
annual per capita consumption of milk is 24.1 gallons. being from the midwest you believe milk consumption is lower
How can such information be used as a tracking device for the impact of advertising? Is there a chance that these probabilities would change during the year?
The report will be structured as follows: Section: For each question provide: The null hypothesis, The alternate hypothesis, The test statistic chosen (including which test), The critical value and decision rule and The P-value
The Focus sample contains information on the undergraduate students at the University of Wisconsin - Eau Claire (UWEC). Open the Focus sample worksheet (Focus Sample) and do the following.
In fact, the sample overrepresented those with high scores and under represented those with low scores. What type of error (Type I or Type II) did the counselors make?
Derrick scored an 80 on both tests. Julie scored a 70 on the first test and a 90 on the second. They both totaled 160 points on the two exams, but Julie claims that her total is better. Explain.
The pie chart shows the ratings assigned to 120 first-run movies released in 2005.- Is this an appropriate display for these data? Explain.- Which was the most common rating?
With your start time being random and uniformly distributed in this interval. What is the PDF of the time that you have to wait for the first train to arrive?
A salesperson contacts eight potential customers per day. From past experience, we know that the probability of a potential customer making a purchase is .10. What is the probability the salesperson will make exactly two sales in a day?
Test an appropriate hypothesis and state your conclusion. Be sure the appropriate assumptions and conditions are satisfied before you proceed.
on nov 1 2012 there was a florida poll. the poll was of 549 likely florida voters. 47 said they were going to vote for
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