Interaction is: group of answer choices

1. a measure to determine the correlation between dependent variables.
2. the principle of having a model with maximum explanatory variables.
3. the process of coding categorical variables.
4. the dependence between two independent variables.\

Barbara flynn is in charge of maintaining hospital supplies at general hospital. during the past year, the mean lead time demand for bandage bx-5 was 65 (and was normally distributed). furthermore, the standard deviation for bx-5 was 6. ms. flynn would like to maintain a 90% service level.refer to the standard normal table for z-values.a) what safety stock level do you recommend for bx-5? safety stock=)what is the appropriate reorder point? reorder point=