A manufacturer of flash drives for data storage operates a production facility that runs on three 8-hour shifts per day. The following contingency table shows the number of flash drives that were defective and not defective from each shift. Shift Defective Not Defective 7AM-3PM 7 113 3PM-11PM 10 90 11PM-7AM 4 76 Perform a hypothesis test to determine if the quality of the flash drive production and the production shift are independent variables using α = 0.05.
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
A manufacturer of flash drives for data storage operates a production facility that runs on three 8-hour shifts per day. The following
|
Shift |
Defective |
Not Defective |
|
7AM-3PM |
7 |
113 |
|
3PM-11PM |
10 |
90 |
|
11PM-7AM |
4 |
76 |
Perform a hypothesis test to determine if the quality of the flash drive production and the production shift are independent variables using α = 0.05.
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