Using the fixed-time-period inventory model, and given an average daily demand of 75 units, 10 days between inventory reviews, 2 days for lead time, 50 units of inventory on hand, a service probability of 95 percent, and a standard deviation of demand over the review and lead time of 8 units, which of the following is the order quantity?

Which data set has a greater spread? why? set a: {38, 12, 23, 48, 55, 16, 18} set b: {44, 13, 24, 12, 56} has a greater spread because .

The cost for an uberi is $2.50 plus $2.00 mile. if the total for the uber ride was $32.50, how many miles did the customer travel?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.