Production records indicate that in normal operation for a certain electronic component, 93% have no faults, 5% have one fault, and 2% have more than one fault. For a random sample of 500 of these components from a week’s output, 458 were found to have no faults; 30, to have one fault; and 12, to have more than one fault. Test, at the 5% level, the null hypothesis that the quality of the output from this week conforms to the usual pattern.

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Q: Construct a  90%  confidence interval for the difference  −μ1μ2  between the mean recovery time…

A:

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A: We have given that  Sample size n =20 Sample mean =18.22 Standard deviation =0.92

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Q: Shift Morning Evening Overnight Total Defect Type A 43 17 14 74 Defect Type B 36 49 22 42 127 Defect…

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Q: What is the approximate sampling distribution of x , the mean water loss of the 34 lizards

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.