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Question: A lot of 50 items is inspected by the following two =-stage plan.
(i) A first sample of 5 items is drawn without replacement. If all are good the lot is passed: if two or more are bad the lot is rejected.
(ii) If the first sample contains just one bad item, a second sample of 10 more items is drawn without replacement (from the remaining 45 items) and the lot is rejected if two or more of these are bad. Otherwise it is accented
Suppose there are 10 bad items in the lot.
a) What is the probability that the second sample is drawn and contains more than one bad item?
b) Write down an expression for the probability that the lot is accepted.
The administration at the university of Georgia is interested in determining if a parking problem exists for their students. The administration selects a randome sample of 200 students and asks them to estimate the amount of time it took the stude..
(a) What is the probability that the sum of the two rolls is at most 6 given that the first one is an even number? (b) Are event A and event B independent? Explain.
dotcom receives component parts from supplier x continuously throughout the year. the company randomly samples 25
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If it is known that Trish drew at least 1 black card, what is the probability that she drew no more that 2 black cards? Hint: Use your table from part (a)
in a manufacturing process a quality control inspector selected three items at random. items can be either defective or
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Suppose you want to determine whether students' expected grades at the beginning of an introduction to statistics course are positively related to their final course grade. Write the null and alternative hypotheses in words.
Make a scatterplot with the number of semesters on the x-axis and the number of units on the y-axis. Does one point stand out as unusual?
at a classic car auction you are interested in a 1940 ford standard tudor and decide to bid for the car. there is a
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