In a manufacturing process that laminates several ceramic layers, 0.5% of the assemblies are defective. Assume the assemblies are independent. (a) What is the mean number of assemblies that need to be checked to obtain 4 defective assemblies? (b) What is the standard deviation of the number of assemblies that need to be checked to obtain 4 defective assemblies? (a) The mean number of assemblies is i [Round your answer to the nearest integer.] (b) The standard deviation of the number of assemblies is i [Round your answer to two decimal places leg 98 76)1

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In a manufacturing process that laminates several ceramic layers, 0.5% of the assemblies are defective. Assume the assemblies are
independent.
(a) What is the mean number of assemblies that need to be checked to obtain 4 defective assemblies?
(b) What is the standard deviation of the number of assemblies that need to be checked to obtain 4 defective assemblies?
(a) The mean number of assemblies is
i
[Round your answer to the nearest integer.]
(b) The standard deviation of the number of assemblies is
i
[Round your answer to two decimal places
(e.g. 98.76).]
Statistical Tables and Charts
Transcribed Image Text:In a manufacturing process that laminates several ceramic layers, 0.5% of the assemblies are defective. Assume the assemblies are independent. (a) What is the mean number of assemblies that need to be checked to obtain 4 defective assemblies? (b) What is the standard deviation of the number of assemblies that need to be checked to obtain 4 defective assemblies? (a) The mean number of assemblies is i [Round your answer to the nearest integer.] (b) The standard deviation of the number of assemblies is i [Round your answer to two decimal places (e.g. 98.76).] Statistical Tables and Charts
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