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A production manager knows that 5.5% of computer chips produced by a particular manufacturing process have some defect. A random sample of 5 computer chips are selected, whose characteristics can be assume to be independent of each other, were examined. Let X denotes the number of defective computer chips.
a) Explain how X is distributed?
b) Construct a probability distribution for the number of defective computer chips.
c) Represent graphically the probability distribution for (a) above.
d) Find the probability that;i. Exactly 2 computer chips are defectiveii. Between 4 to 5 computer chips are defective
e) What is the expected value of defective computer chips? Explain.
A large internet retailer is studying the lead time (elapsed time between the time when the order is placed and the time it is filed). The table below gives the lead times (in days) for a random sample of recent orders.
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The sample data are summarized by the statistics n = 27, x = 4.6 years, s- 1.9 years.
What measurements assesses the amount of variance of change in the dependent variable reflected by changes in the independent variable?
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The p-value of the test is closest to:
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Metro Real Estate Association is preparing a pamphlet that they feel might be of interest to prospective homebuyers in the Middletown and Brockton areas of the city.
Suppose it has been determined that the average number of customers waiting for service is 1.929. There are two servers. Determine:
Find the quotient and remainder when x^7 + x^4 + x + 1 is divided by x^3 + x^2 + 1 over mod 2. Please show the detailed working along with explanations as needed.
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