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A quality-control analyst wants to estimate the proportion of imperfect jeans in a large warehouse. The analyst plans to select a random sample of 500 pairs of jeans and note the proportion of imperfect pairs.
If the actual proportion in the entire warehouse is 0.35, what is the probability that the sample proportion will deviate from the population proportion by more than 0.05?
Now suppose he says that if he is optimistic about the success of one project, he is likely to be optimistic about the others as well. For your simulation, this means that if one of the probabilities increases, the others also are likely to increa..
Describe the methods for interpretation of categories (row or column) in CA. Can categories always be directly compared based on proximity in the perceptual map?
10 people taste wine A and wine B, X= denote the number prefer A. Assume that all others prefer B. These people random sample..
Compute the value of the test statistic for this hypothesis test. Using the p-value, at 95% confidence, test to determine whether the measures were effective in reducing the average price.
Assume that a single radar unit used to detect incoming missiles has a probability of 0.90 of correctly detecting an incoming missile attack.
b. What is the ARL when n = 4 and the process mean has shifted to c. How do the values of parts (a) and (b) compare to the corresponding values for a 3-sigma chart?
1. Suggest several lurking variables that might help explain the association between marital status and income.
A supposedly fair coin was tossed 10 times and 4 heads were obtained. Test the hypothesis that the coin is fair versus the alternative that it is not fair. Use both the large sample approximation (check that this is valid ?rs..
Determine the probability that a single light bulb lasts over 120 hours. (d) Could you use the CLT to approximate the distribution of the total lifetime of these bulbs?
18 contained both a blue pen and a pencil, and 10 contained all three items. How many backpacks contained exactly two of the three writing instruments?
Find the fundamental matrix Z for this chain. Compute the mean first passage matrix using Z.
Taking α to be 0.05, what is/are the critical values associated with testing your hypothesis?
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